W. R. Babbitt Publications (UpDATED 3/9/2007)

 

#Refereed Archival Journal Publications

#Books published

#Invited Conference Presentations

#Reviewed Conference Publications

#Non-Reviewed Conferences Proceedings

#Workshop Presentations and Lectures since 1995

#Patents Issued

 

 

Refereed Archival Journal Publications

1)  N. W. Carlson, L. J. Rothberg, A. G. Yodh, W. R. Babbitt, and T. W. Mossberg, "Storage and Time Reversal of Light Pulses Using Photon Echoes," Opt. Lett. 8, 483 (1983).

2)  N. W. Carlson, W. R. Babbitt, and T. W. Mossberg, "Storage and Phase Conjugation of Light Pulses Using Stimulated Photon Echoes," Opt. Lett. 8, 623 (1983).

3)  N. W. Carlson, W. R. Babbitt, Y. S. Bai, and T. W. Mossberg, "Field-Inhibited Optical Dephasing and Shape Locking of Photon Echoes," Opt. Lett. 9, 232 (1984).

4)  N. W. Carlson, Y. S. Bai, W. R. Babbitt, and T. W. Mossberg, "Temporally Programmed Free-Induction Decay," Phys. Rev. A 30, 1572 (1984).

5)  Y. S. Bai, W. R. Babbitt, N. W. Carlson, and T. W. Mossberg, "Real-Time Optical Waveform Convolver/Cross Correlator," Appl. Phys. Lett. 45, 714 (1984).

6)  N. W. Carlson, W. R. Babbitt, Y. S. Bai, and T. W. Mossberg, "Spectrally Ordered Zeeman Coherences and Optical Pulse-Shape Storage," JOSA B 2, 908 (1985).

7)  W. R. Babbitt and T. W. Mossberg, "Mixed Binary Multiplication of Optical Signals by Convolution in an Inhomogeneously Broadened Absorber," Appl. Opt. 25, 962 (1986).

8)  Y. S. Bai, W. R. Babbitt,  and T. W. Mossberg, "Coherent Transient Optical Pulse Shape Storage/Recall Using Frequency-Swept Excitation Pulses," Opt. Lett. 11, 724 (1986).

9)  W. R. Babbitt and T. W. Mossberg, "Time-Domain Frequency-Selective Optical Data Storage in a Solid-State Material," Opt. Comm. 65, 185 (1988).

10)  W. R. Babbitt, A. Lezama, and T. W. Mossberg, "Optical Dephasing, Hyperfine Structure, and Hyperfine Relaxation Associated with the 580.8nm 7F0-5D0 Transition in Eu3+:Y2O3," Phys. Rev. B1 39, 1987 (1989).

11)  M. W. Derstine, W. R. Babbitt, R. G. A. Craig, A. L. Lentine, F. B. McCormick, R. A. P. Tooley, and A. C. Walker, "Free-Space Digital Optical Systems, " Photonics Spectra 25, issue 5, 139 (May 1991).

12)  W. R. Babbitt and J. A. Bell, "Coherent Transient Continuous Optical Processor," Applied Optics, 33, 1538 (1994).

13)  W. R. Babbitt and T. W. Mossberg, “Quasi-two-dimensional time-domain color memories:  process limitations and potentials,” JOSA B 11, 1948-1953, (1994).

14)  W. R. Babbitt and T. W. Mossberg, “Spatial routing of optical beams through time-domain spatial-spectral filtering, ” Optics Letters 20, 910-912 (1995).

15)  M. Zhu, W.R. Babbitt, C. M. Jefferson, “Continuous coherent transient optical processing in a solid,” Optics Letters 20, 2514-2516 (1995).

16)  K.D. Merkel and W.R. Babbitt, “Optical coherent transient header/data isolation technique,” Optics Letters 21, 71-73 (1996).

17)  K.D. Merkel and W.R. Babbitt, “Coherent transient optical signal processing without brief pulses,” Appl. Optics, 35, 278-285 (1996).

18)  K. D. Merkel and W. R. Babbitt, “Compensation for homogeneous dephasing in coherent transient optical memories and processors,”  Optics Communications, 128, 136-144 (1996).

19)  K. D. Merkel and W. R. Babbitt, “Optical coherent transient true-time delay regenerator,”  Optics Letters 21, 1102-1104 (1996).

20) M. A. Azadeh and W. R. Babbitt, “Photon Echoes in Inverted Media,”  Mol. Cryst.  Liq. Cryst. 291, 269-276 (1996).

21) M. Azadeh , W. R. Babbitt , R. B. Darling,  "Smart pixels with smart illumination," Optics Letters 23 , 786 -788 (1998).

22) K. D. Merkel and W. R. Babbitt, "Chirped-pulse programming of optical coherent transient true-time delays," Optics Letters 23, 528-530 (1998).

23) W.R. Babbitt and T. W. Mossberg, "Optical waveform processing and routing with structured surface gratings," Optics Comm. 148, 23-26 (1998).

24) M. Azadeh, C. Sjaarda Cornish, W. R. Babbitt, and L. Tsang , "Efficient photon echoes in optically thick media," Physical Review A  57, 4662-4668 (1998).

25) K.D. Merkel and W. R. Babbitt, “Optical coherent transient continuously programmed continuous processor,” Optics Letters, 24, 172-174 (1999).

26) K.D. Merkel, W.R. Babbitt, K.E. Anderson, and K.H. Wagner, "Variable-time delay optical coherent transient signal processing," Optics Letters, 24, 1386-1388 (1999)

27) M. Azadeh, R.B. Darling, W.R. Babbitt, "Characteristics of optoelectronic feedback for smart pixels with smart illumination," IEEE Jounal of Selected Topics in Quantum Electronics, 5, 172-177, (1999)

28) T.L. Harris, Y. Sun, W.R. Babbitt, R.L. Cone, J.A. Ritcey, and R.W. Equall, "Spatial spectral holographic correlator at 1536nm using 30-symbol quadriphase and binary-phase-shift keyed codes," Optics Letters, 25, 85-87 (2000)

29) K. D. Merkel, Z. Cole, and W. R. Babbitt, "Signal correlator with programmable variable time delay based on optical coherent transients," J. of Luminescence, 86 375-382 (2000).

30) K. D. Merkel and W. R. Babbitt, "Continuous waveform variable true-time delay by optical coherent transients," Optics Comm.  180, 103-110 (2000).

31) C. Sjaarda Cornish, W. R. Babbitt, and L. Tsang " Demonstration of highly efficient photon echoes," Optics Letters 25, 1276-1278 (2000).

32) M. Azadeh, R.B. Darling, W.R. Babbitt, “A model for optoelectronically interconnected smart pixel arrays,” J. Lightwave Technology 18, 1437-1444 (2000).

33) K. D. Merkel, R. D. Peters, P. B. Sellin, K. S. Repasky and W. R. Babbitt, "Accumulated programming of a complex spectral grating," Optics-Letters 25, 1627-1629 (2000).

34) M. Tian, J. Zhao, Z. Cole, R. Reibel, and W. R. Babbitt, "Dynamics of Broadband Accumulated Spectral Gratings in Tm3+: YAG," JOSA B 18, 673-678 (2001).

35) M. Tian, R. Reibel, and W. R. Babbitt, " Demonstration of optical coherent transient true-time delay at 4 Gbits/s," Opt. Lett. 26, 1143-1145 (2001).

36) R. Reibel, Z. Barber, M. Tian and W. R. Babbitt, “Temporally overlapped linear frequency chirped programming for true-time delay applications,” Opt. Lett. 27, 494 (2002).

37) R. Reibel, Z. Barber, M. Tian, and W. R. Babbitt, “High bandwidth spectral grating programmed with linear frequency chirps”, J. Lumin. 98, 355-365 (2002).

38) M. Tian, Z. Barber, T. Chang, R. Reibel, and W. R. Babbitt, “Temporal and spatial behavior of photon echoes stimulated from long pulses”, J. Lumin. 98, 367-374 (2002).

39) M. Tian, R. Reibel, Z. Barber, and W. R. Babbitt, “Nutational stimulated photon echoes”, Opt. Lett. 27, 1156 (2002).

40) Z. Barber, M. Tian, R. Reibel, and W. R. Babbitt, “Optical pulse shaping using optical coherent transients”, Opt. Exp. 10, 1145-1150 (2002)

41) R. Reibel, Z. Barber, M. Tian, W. R. Babbitt, Z. Cole, and K.D. Merkel, “Amplification of high bandwidth phase modulated signals at 793nm,” J. Opt. Soc. Am. B. 19, 2315 (2002).

42) Z. Cole, T. Böttger, R. Krishna Mohan, R. Reibel, W. R. Babbitt, R. L. Cone and K. D. Merkel, “Coherent integration of 0.5 GHz spectral holograms at 1536 nm using dynamic biphase codes,” Appl. Phys. Lett 81, 3525-3527 (2002).

43) L. Tsang, C. Sjaarda Cornish, and W. R. Babbitt, “Analytic Solutions of the Maxwell-Bloch Equations for High Photon Echo Efficiency of Multiple Pulse Sequences,” JOSA B 20,  379-390 (2003).

44) M. Tian, R. Reibel, Z. Barber, J. Fischer, and W. R. Babbitt, “Observation of geometric phase using photon echoes,” Phys. Rev. A 67, 11403 (2003).

45) T. L. Harris, M. Tian, W. R. Babbitt, G. W. Burr, J. A. Hoffnagle, and C. M. Jefferson, "Chirped excitation of optically dense inhomogeneously broadened media using Eu3+:Y2SiO5," JOSA B: Optical Physics 21, 811-819 (2004).

46) G. W. Burr, T. L. Harris, W. R. Babbitt, and C. M. Jefferson, “Incorporating excitation-induced dephasing into the Maxwell–Bloch numerical modeling of photon echoes,” J. Lum. 107, 314-331 (2004).

47) R. R. Reibel, Z. W. Barber, J. A. Fischer, M. Tian, and W. R. Babbitt, "Broadband demonstrations of true-time delay using linear sideband chirped programming and optical coherent transients," J. Lum. 107, 103-113 (2004).

48) K.D. Merkel, R. Krishna Mohan, Z. Cole, T. Chang, A. Olson, and W. R. Babbitt, “Multi-Gigahertz radar range processing of baseband and RF carrier modulated signals in Tm:YAG,” J. Lum. 107, 62-74 (2004).

49) M. Tian, Z. W. Barber, J. A. Fischer, and W. R. Babbitt, "The geometric phase in two-level atomic systems," J. Lum. 107, 155-159 (2004).

50) T. Chang, M. Tian, and W. R. Babbitt, "Numerical modeling of optical coherent transient processes with complex configurations - I. Angled beam geometry," J. Lum. 107, 129-137 (2004).

51) T. Chang, M. Tian, Z. W. Barber, and W. R. Babbitt, "Numerical modeling of optical coherent transient processes with complex configurations - II. Angled beams with arbitrary phase modulations," J. Lum. 107, 138-145 (2004).

52) M. A. Neifeld, W. R. Babbitt, R. K. Mohan, and A. E. Craig, "Power budget analysis of image-plane storage in spectral hole-burning materials," J. Lum. 107, 114-121 (2004).

53) M. Tian, Z. W. Barber, J. A. Fischer, W. R. Babbitt, "Geometric manipulation of the quantum states of two-level atoms," Phys. Rev. A 69, 50301-4 (2004).

54) T. Chang, R. K. Mohan, M. Tian, T. L. Harris, W. R. Babbitt, and K. D. Merkel,  "Frequency-chirped readout of spatial-spectral absorption features," Phys. Rev. A. 70, 063803 (2004).

55) D. E. Benson, J. M. Murray, R. D. Regester III, K. S. Repasky, and W. R. Babbitt, "Normalized differential detection by use of smart pixels with smart," Appl. Opt. 44, 2607 (2005).

56) T. Chang, M. Tian, R. K. Mohan, C. Renner, K. D. Merkel, and W. R. Babbitt, "Recovery of spectral features readout with frequency chirped laser fields," Opt. Lett. 30, 1129 (2005).

57) F. Schlottau, M. Colice, K. H. Wagner, and W. R. Babbitt, "Spectral hole burning for wideband, high-resolution radio-frequency spectrum analysis," Optics Letters, 30, 3003-5 (2005).

58) T. L. Harris, K. D. Merkel, R. K. Mohan, T. Chang, Z. Cole, A. Olson, and W. R. Babbitt, "Multigigahertz range-Doppler correlative signal processing in optical memory crystals," Applied Optics,  45(2), 343-352 (2006).

59) J. Murray, H. Li, M. Tian, T. Chang, and Wm. R. Babbitt, “Efficiency and uniformity considerations in optical coherent transient devices," JOSA B, 23, 795-800 (2006).

60) Y. Li, A. Hoskins, F. Schlottau, K. H. Wagner, C. Embry, and W. R. Babbitt, "Ultrawideband coherent noise lidar range-Doppler imaging and signal processing by use of spatial-spectral holography in inhomogeneously broadened absorbers," Applied Optics, 45, 6409-6420 (2006).

61) R. Krishna Mohan, T. Chang, M. Tian, S. Bekker, A. Olson, C. Ostrander, A.Khallaayoun, C. Dollinger, W.R. Babbitt, Z. Cole, R.R. Reibel, K.D. Merkel, Y. Sun, R. L. Cone, F. Schlottau, K. H. Wagner, "Ultra-wideband spectral analysis using S2 technology," J. Lumin. 127, 116-128 (2007).

62) I. Zafarullah, M. Tian, T. Chang, and W. R. Babbitt, “Preparation of inverted medium and processing in the inverted medium,” J. Lumin. 127, 158-163 (2007).

63) Z. Cole, P. A. Roos, T. Berg, B. Kaylor, K. D. Merkel, W. R. Babbitt, and R.R. Reibel, "Unambiguous Range-Doppler LADAR processing using 2 giga-sample-per-second noise waveforms," J. Lumin. 127, 146-151 (2007).

64) W. R. Babbitt, M. A. Neifeld, and K. D. Merkel,  " Broadband Analog to Digital Conversion with Spatial-Spectral Holography," J. Lumin. 127, 152-157 (2007).

Books published

W. R. Babbitt, R. L. Cone, A, Rebane, and R. W. Equall, Editors, J. Lum. 107, (2004). 

Invited Conference Presentations

1)  W. R. Babbitt, "Optical Coherent Transient Memory Systems," Photonics for Processors, Neural Networks, and Memories, Proc. of the SPIE Vol. 2026, 532-542 (1993), San Diego, CA, June 12, 1993, Invited Talk.

2)  Miao Zhu, C. Michael Jefferson, and W. R. Babbitt(Invited Speaker), “Coherent Transient Continuous Optical Processing in a Solid,” Spectral Hole-Burning and Related Spectroscopies: Science and Applications, Vol. 15, 1994 OSA Technical Digest Series (Optical Society of America, Washington, DC, 1994) 392-395, Tokyo, Japan, August 24-26, 1994, Invited Talk.

3)  W. R. Babbitt, “Routing of optical data through temporally encoded spatial-spectral gratings,” OSA Annual Meeting 1995, Portland, OR, September 10-15, 1995, Invited Talk. (abstract only)

4)  K. D. Merkel and W. R. Babbitt(Invited Speaker), “Coherent transient optical memories and processors with homogeneous dephasing compensation,” The 5th Intl Meeting on Hole Burning and Related Spectroscopies (HBRS '96), Brainerd, MN September 13-17, 1996, Invited Talk.

5) W. R. Babbitt, “Spatial-Spectral Holographic Memories, Processor, and Routers,” in Optics in Computing, Vol. 8, 1997 OSA Technical Digest Series (OSA, Washington DC, 1997), pp172-174, Incline Village, NV, March 16-21, 1997, Invited Talk.

6)  W. R. Babbitt, “Spatial-Spectral Holographic Routing and Processing Devices”, in Conference on Lasers and Electro-Optics, Vol.11, 1997 OSA Technical Digest Series (Optical Society of America, Washington, DC, 1997) pp 213. Baltimore, MD, May 18-23, 1997, Invited Talk.

7) W.R. Babbitt, "Memory processing and routing applications of spatial-spectral holography in ultra-high-speed computing systems," Proceedings of the SPIE, Advanced Optical Memories and Interfaces to Computer Storage, San Diego, CA, July 22-24, 1998, Vol. 3468, 304-11 (1998), Invited Talk.

8) W.R. Babbitt, "Multidimensional signal processing with spatio-spectral holography," Proceedings of the SPIE, Advanced Optical Data Storage: Materials, Systems, and Interfaces to Computers, Denver, CO, July 20-22, 1999 Vol. 3802, 164-72 (1999) , Invited Talk.

9) W. R. Babbitt, "Optical Coherent Transient Signal Correlators: Science and Applications", 2001 Physics of Quantum Electronics Conference, Snowbird, UT , January 2001, Invited Talk.

10) M. Tian, Z. Barber, T. Chang, R. R. Reibel, and W. R. Babbitt (Invited Speaker), "The Effects of Optical Nutation on Stimulated Photon Echoes," Holeburning, Single Molecules, and Related Spectroscopies, November 18-23, 2001, Taipei, Taiwan, Invited Talk.

11) T. L. Harris, K. D. Merkel, R. K. Mohan, and W. R. Babbitt(Invited Speaker), "Range-Doppler radar signal processing with spectral holography," Conference of Laser and Electro-Optics, San Francisco, May, 2004, CLEO/IQEC and PhAST Technical Digest on CDROM (The Optical Society of America, Washington, DC, 2004), CME1, Invited Talk.

12) W. R. Babbitt, "Microwave Signal Processing with Spatial-Spectral Holography," Annual Meeting of LEOS (IEEE Lasers and Electro-Optics Society), Sydney, Australia, October 27, 2005, Invited Talk

13) W. R. Babbitt, "Digitization of Microwave Signals with Spatial Spectral Holography," Optical Fiber Communication Conference & Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC), March 25-29, 2007, Anaheim, CA, Invited Talk.

Reviewed Conference Publications

1)  N. W. Carlson, W. R. Babbitt, Y. S. Bai, and T. W. Mossberg, "Shape Locking Of Photon Echoes," International Conference of Quantum Electronics Technical Digest Series 1984,  Anaheim, Ca., June 19-21, 1984.  Also published in JOSA B 1, 506 (1984).

2)  W. R. Babbitt, Y. S. Bai, T. W. Mossberg, and N. W. Carlson, "The Storage of Optical Pulseshapes in Spectrally Ordered Populations," Conf. on Lasers and Electro-Optics, Technical Digest, Baltimore, Md., May 21-24, 1985.

3)  Y. S. Bai, W. R. Babbitt, A. G. Yodh, and T. W. Mossberg, "Interaction of Transient Temporally Modulated Laser Radiation with Simple Atomic Systems," Proc. of the First Int'l Laser Science Conference, Dallas, TX, Nov. 18-22, 1985.  Advances in Laser Science-I, W. C. Stwalley and M. Lapp eds., pp. 421-424, AIP, New York (1986).

4)  W. R. Babbitt, Y. S. Bai, and T. W. Mossberg, "The Temporal Shape of Free-Induction-Decay Signals:  Single-Event Studies,” Conference on Lasers and Electro-Optics, 1986 Technical Digest Series, San Francisco, Ca., June 9-13, 1986.

5)  W. R. Babbitt and R. G. Beausoleil, "Dual Optically Stabilized Semiconductor Laser for Coherent Optical Communication," Proceedings of the International Conference on Lasers '89,  .  (STS Press, McLean, VA, 1990), pp. 899-905, New Orleans, La., December 3-8, 1989.

6)  W. R. Babbitt and J. A. Bell, "Coherent transient optical data storage using a semiconductor laser," Conference on Lasers and Electro-Optics, 1990 Technical Digest Series, Vol. 7,  (Optical Society of America, Washington, DC 1990), pp 40-42.  Anaheim, Ca., May 21-25, 1990.

7)  J. A. Bell and W. R. Babbitt, "Phase and frequency sensitive signal processing using stimulated photon echoes," Conference on Lasers and Electro-Optics, 1990 Technical Digest Series, Vol. 7, (Optical Society of America, Washington, DC 1990), pp 420-421.  Anaheim, Ca., May 21-25, 1990.

8)  W. R. Babbitt, R. L Hagman, and J. A. McGarvey, "Tunable line-narrowed semiconductor laser for laser radar applications," New Semiconductor Laser Devices and Applications Conference Digest, (IEEE, New York, 1990) pp.14-15.  Monterey, Ca., August 1-3, 1990.

9)  W.R. Babbitt and J. A. Bell, "Continuous signal processing using optical coherent transients," Spectral Hole-Burning and Luminescence Line Narrowing:  Science and Applications, 1992 Technical Digest (Optical Society of America, Washington, D. C., 1992)  Vol. 22, pp. 222-225, Ascona, Switzerland, September 14-18, 1992 .

10)  W. R. Babbitt and T. W. Mossberg,  “Optical Beam Routing through Time-Domain Spatial-Spectral Filtering,” Photonics in Switching, OSA Technical Digest Series Vol. 12 (OSA, Washington, DC, 1995), pp 129-131, Salt Lake City, Ut., March 15-17, 1995.

11)  W. R. Babbitt and T. W. Mossberg,  “Passive Optical Beam Routing through Temporal Spatial-Spectral Filtering, ” in Conference on Lasers and Electro-Optics, 1995 Technical Digest Series (Optical Society of America, Washington, DC, 1995) Vol . 15,  pp.86-87, Baltimore, Md., May 21-26, 1995.

12)  K. D. Merkel and W.R. Babbitt, "Coherent transient optical signal processing without brief reference pulses," in Photonics in Computing II, Leo J. Irakliotis, Editor, 117-126 (1995), Fort Collins, Co., June 6-9, 1995.

13)  K. D. Merkel and W. R. Babbitt, “Homogeneous dephasing compensation in coherent transient optical memories and processors,” in Conference on Lasers and Electro-Optics, Vol. 9, 1996 OSA Technical Digest Series (Optical Society of America, Washington, DC, 1996) pp 197-198. Anaheim, Ca., June 2-7, 1996.

14)  K. D. Merkel and W. R. Babbitt, “A coherent transient optical true-time delay generator for phased array radar,”  Poster presentation at The 5th International Meeting on Hole Burning and Related Spectroscopies (HBRS '96), Brainerd, Minn., September 13-17, 1996.

15)  K. D. Merkel and W. R. Babbitt, “Optical coherent transient header/data isolation technique,”  Poster presentation at The 5th International Meeting on Hole Burning and Related Spectroscopies (HBRS '96), Brainerd, Minn., September 13-17, 1996.

16)  M. Azadeh and W. R. Babbitt, “Coherent Transients in Inverted Media,”  Post-deadline poster presentation at The 5th International Meeting on Hole Burning and Related Spectroscopies (HBRS '96), Brainerd, Minn., September 13-17, 1996.

17)  W. R. Babbitt and R. B Darling, “Efficient Optical Sensor Design For Multi-Function Integrated Emitter-Detector Arrays,” in Optics in Computing, Vol. 8, 1997 OSA Technical Digest Series (OSA, Washington DC, 1997), pp 61-63, Incline Village, NV, March 16-21, 1997.

18)  K. D. Merkel and W. R. Babbitt, “Temporal dependence of coherent transient regenerated true-time-delays on intensity of applied pulses,” in Conference on Lasers and Electro-Optics, Vol. 6, 1998 OSA Technical Digest Series (Optical Society of America, Washington, DC, 1998) pp 171. San Francisco, Ca., May 3-8, 1998.

19)  C. S. Cornish, M. Azadeh,  W. R. Babbitt, and L. Tsang “Efficient waveform recall in absorbing media,” in Conference on Lasers and Electro-Optics, Vol. 6, 1998 OSA Technical Digest Series (Optical Society of America, Washington, DC, 1998) pp 214-5. San Francisco, May 3-8, 1998.

20) M. Azadeh, R. B. Darling, and W. R. Babbitt, “Smart Pixels with build-in illumination and optical feedback,” in Conference on Lasers and Electro-Optics, Vol. 6, 1998 OSA Technical Digest Series (Optical Society of America, Washington, DC, 1998) pp 350. San Francisco, May 3-8, 1998.

21) K. D. Merkel and W.R. Babbitt, " Optical coherent transient continuously programmed continuous true-time delay processor," in The Ninth Annual DARPA Symposium on Photonic Systems for Antenna Applications (PSAA) session 3. Monterey, CA, February 17-19, 1999.

22) K. D. Merkel and W. R. Babbitt, “Continuously programmed optical coherent transient continuous signal processor,” 1999 Optics in Computing OSA Topical Meeting, Snowmass, CO, April 12-16, 1999.

23) K. H. Wagner, K. E. Anderson, W. R. Babbitt, and K. D. Merkel, "Optical coherent transient true-time-delay beam-forming processor," 1999 Optics in Computing OSA Topical Meeting, Snowmass, CO, April 12-16, 1999

24) T. L. Harris, Y. Sun, R.L. Cone, W.R. Babbitt, J. A. Ritcey, and R. W. Equall, "A spatial-spectral holographic correlator at 1536 nm using 30-symbol BPSK and QPSK codes optimized for secure communications," 1999 Optics in Computing OSA Topical Meeting, OSA Technical Digest (Optical Society of America, Washington DC, 1999), pp.181-183, OSA Topical Meeting, Snowmass, CO, April 12-16, 1999

25) K. D. Merkel and W. R. Babbitt, “Frequency-tuned continuous true-time delay by optical coherent transient technology,” in Conference on Lasers and Electro-Optics, 1999 OSA Technical Digest Series (Optical Society of America, Washington, DC, 1999) pp 171. Baltimore, MD, May 24-28, 1999.

26) M. Azadeh, R. B. Darling and W.R. Babbitt, "Smart pixel sensor arrays based on optoelectric feedback," in Conference on Lasers and Electro-Optics, 1999 OSA Technical Digest Series (Optical Society of America, Washington, DC, 1999) pp 199. Baltimore, MD, May 24-28, 1999.

27) T. L. Harris, Y. Sun, R.L. Cone, W.R. Babbitt, J. A. Ritcey, and R. W. Equall, "A spatial-spectral holographic correlator at 1536 nm using 30-symbol BPSK and QPSK codes optimized for secure communications," in Conference on Lasers and Electro-Optics, 1999 OSA Technical Digest Series (Optical Society of America, Washington, DC, 1999) pp 282. Baltimore, MD, May 24-28, 1999.

28) K. H. Wagner, K. Anderson, W.R. Babbitt, and K. D. Merkel, "Multidimensional photon echo processing,"  (Invited Paper) Proceedings of the SPIE, Optical Science, Engineering, and Instrumentation, Denver, CO, July 18-23, 1999, Vol. 3804, paper 3804-03 (1999).

29) K. D. Merkel, K. Repasky, and W. R. Babbitt "Demonstration of a continuously programmed optical coherent transient processor," presented at 6th Int. Meeting of Hole Burning and Related Spectroscopies: Science and Applications (HBRS'99), September 18-23, 1999, Hourtin, France.

30) R. L. Cone, Y. Sun, F. Könz, N. M. Strickland, T. L. Harris, C.W. Thiel, T. Böttger, G. Reinemer, W. R. Babbitt, R. W. Equall and R. L. Hutcheson, R. M. Macfarlane, and J. A. Ritcey, " New Rare Earth Materials, Material Concepts, and Demonstrations of Spectral Hole Burning Applications," presented at 6th Int. Meeting of Hole Burning and Related Spectroscopies: Science and Applications (HBRS'99), September 18-23, 1999, Hourtin, France.

31) K. H. Wagner, K. E. Anderson, K. D. Merkel, and W. R. Babbitt "Photon Echo Adaptive Array Processor" presented at 6th Int. Meeting of Hole Burning and Related Spectroscopies: Science and Applications (HBRS'99), September 18-23, 1999, Hourtin, France.

32) M. Tian, Z. Cole, K. D. Merkel, J. Zhao, and W. R. Babbitt "Accumulated Photon Echoes in a Tm3+:YAG Crystal by picosecond pulses," poster presentation at  6th Int. Meeting of Hole Burning and Related Spectroscopies: Science and Applications (HBRS'99), September 18-23, 1999, Hourtin, France.

33) K. D. Merkel, Z. Cole, and W. R. Babbitt "Programmable variable time delay signal correlator based on six-wave mixing optical coherent transients," poster presentation at 6th Int. Meeting of Hole Burning and Related Spectroscopies: Science and Applications (HBRS'99), Sept. 18-23, 1999, Hourtin, France.

34) K. D. Merkel, Z. Cole, and W. R. Babbitt, "Signal correlator with programmable variable time delay based on optical coherent transients," IEEE Lasers and Electro-Optics Society 1999 Annual Meeting, p. 566-7, Nov. 8-11, 1999, San Francisco, CA.

35) A. Rebane, A. Tchouassi-Djiki, and W. R. Babbitt, "Recording of ultrafast image holograms by photo-induced frequency-doubling in glass,"  IEEE Lasers and Electro-Optics Society 1999 Annual Meeting, 568-9, Nov. 8-11, 1999, San Francisco, CA.

36) C. Sajaarda Cornish, W.R. Babbitt, and L. Tsang,. "Demonstration of highly efficient photon echoes in absorbing media," in Conference on Lasers and Electro-Optics, Technical Digest (Optical Society of America, Washington DC, 2000), pp. 216-217, May 2000, San Francisco, CA.

37) M. Azadeh, R.B. Darling, and W.R. Babbitt, "Accurate CMOS current mode control and processing for a VSCEL array", in Conference on Lasers and Electro-Optics, Technical Digest (Optical Society of America, Washington DC, 2000), p. 536, May 2000, San Francisco, CA.

38) C. Sajaarda Cornish, L Tsang, and W.R. Babbitt, "A study of the energy source for photon echoes", in Conference on Lasers and Electro-Optics, Technical Digest (Optical Society of America, Washington DC, 2000), p. 491, May 2000, San Francisco, CA.

39) Z. Cole, K. Merkel, and W.R. Babbitt, "Atomic coherence state phase conjugation in optical coherent transients," in Conference on Lasers and Electro-Optics, Technical Digest (Optical Society of America, Washington DC, 2000), pp.68-69, May 2000, San Francisco, CA.

40) M. Tian, R. Reibel, and W.R. Babbitt, “Broadband true-time-delay with optical coherent transients,” in Conference on Lasers and Electro-Optics, Technical Digest (Optical Society of America, Washington DC, 2001), p.371-2, May 2001, Baltimore, MD.

41) N. L. Seldomridge, R. Krishna Mohan, W. R. Babbitt and K. D. Merkel, "Steady-state accumulated complex spectral gratings for correlation signal processing" in Conference on Lasers and Electro-Optics, Technical Digest (Optical Society of America, Washington DC, 2001), p.372-3, May 2001, Baltimore, MD.

42) R. Reibel, Z. Barber, M. Tian, W. R. Babbitt, “Temporally Overlapped Linear Frequency Chirp Programming for True Time Delay Applications,” poster, Holeburning, Single Molecules, and Related Spectroscopies, November 18-23, 2001, Taipei, Taiwan.

43) M. Tian, R. Reibel, Z. Barber, W. R. Babbitt, “Broadband true-time delay in Tm:YAG,” poster, Holeburning, Single Molecules, and Related Spectroscopies, November 18-23, 2001, Taipei, Taiwan.

44)  Complex spectral gratings accumulated and maintained in steady-state for continuous correlation signal processing,

Source: Talk, Merkel, K. D., Montana State University, USA, 7th International Meeting on Hole Burning, Single Molecule, and Related Spectroscopies, Taipei, Taiwan, November 18-23, 2001

45) M. Tian, R. Reibel, W. R. Babbitt,” Demonstration of broadband true-time delay with optical coherent transient,” Microwave Photonics-2001, 223-226, January 2002, Long beach, CA.

46) M. Tian*, R. R. Reibel, Z. Barber, J. Fischer, W. R. Babbitt, “Optical Coherent Transient True-time delay: Broadband programming methods”, 2002 Physics of Quantum Electronics Conference, Snowbird, UT, January 2002 (*invited speaker).

47) Analog optical processing of high bandwidth, large dynamic range signals using spectral hole burning: A RANGE CORRELATOR, Cole  Z., Krishna Mohan, R., Merkel, K. D.; Bottger T., Reibel R., Babbitt W. R., and Cone R.L., Source: Oral Presentation, 32nd Winter Colloquium on the Physics of Quantum Electronics, Snow Bird UT, January 2002

48) Z. Barber, M. Tian, R. R. Reibel, W. R. Babbitt, “Optical Pulse Shaping Using Optical Coherent Transients”, in Conference on Lasers and Electro-Optics, Technical Digest (Optical Society of America, Washington DC, 2002), May 2002, Long Beach, CA.

49) M. Tian, R. R. Reibel, Z. Barber, J. Fischer, and W. R. Babbitt, “Optical Coherent Transient True-Time Delay Generator Programmed with Linear Phase Chirp”, in Conference on Lasers and Electro-Optics, Technical Digest (Optical Society of America, Washington DC, 2002), May 2002, Long Beach, CA.

50) Z. Cole, T. Böttger, R. Krishna Mohan, R. Reibel, W. R. Babbitt, R. L. Cone and K. D. Merkel, “Signal Processing by Dynamic Accumulation of Spectral Holograms in Er3+:Y2SiO5 at 4.2K,” in Conference on Lasers and Electro-Optics, Technical Digest (Optical Society of America, Washington DC, 2002), May 2002, Long Beach, CA.

51) Efficient modeling of optical coherent transient processors, Chang,T., Tian, M., Babbitt, W.R.,Source: Technical Digest. Summaries of papers presented at the Conference on Lasers and Electro-Optics. Conference Edition IEEE-Cat.-No.02CH37337. vol.1, 211, 2002

52) K. D. Merkel (invited speaker), Z. Cole, R. K. Mohan, and W. R. Babbitt, "The Spatial-Spectral Coherent Holographic Integrating Processor (S2-CHIP): Performance Analysis and 1.0 Gb/s Demonstration," Photonics West 2003 San Jose, California, January 25-31, 2003, Proc. of SPIE – Vol. 4988, Advanced Optical Data Storage, pp. 112-119 (2003).  Invited Talk

53) W. R. Babbitt, K. D. Merkel, M. Tian, R. Krishna Mohan, Z. Cole, Y. Sun, and R. L. Cone "Optical-Coherent-Transient Technologies For Wide-Bandwidth and Multidimensional Analog Optical Signal Processing," GOMACTech 2003 Tampa Florida, April 2003.

54) K. D. Merkel, Z. Cole, R. Krishna Mohan, W. R. Babbitt, "Demonstration of the Spatial-Spectral Coherent Holographic Integrating Processor (S2-CHIP) for analog RF signal processing applications," GOMACTech 2003 Tampa Florida, April 2003.

55) R. Krishna Mohan, Zachary Cole, W.Randall Babbitt and Kristian D. Merkel, "Range Correlation with 1 Gbps Bi-phase Optical Signals Using Spatial-Spectral Holography in Tm:YAG," CLEO–2003, June, 2003, Baltimore, MD.

56) M. Tian, R. R. Reibel, Z. W. Barber, J. A. Fischer, and W. R. Babbitt, “Observation of Geometric Phase in Three-level Atomic System”, CLEO’2003, June 1-6, 2003, Baltimore, Maryland).

57) K. D. Merkel, R. Krishna Mohan, Z. Cole, T. Chang, A. Olson and W. R. Babbitt, "Multi-Gigahertz Radar Range Processing of Baseband and IF Modulated Signals in Tm:YAG," HBSM’2003, July 27-31, 2003, Bozeman, Montana.

58) T. Chang, K.D. Merkel, K.M. Rupavatharam, T. L. Harris and W.R. Babbitt, "Numerical Modeling of Optical Coherent Transient Process with Complex Configuration II: Frequency Chirped Pulse Readout of Spectral Gratings for the S2-CHIP,"  HBSM’2003, July 27-31, 2003, Bozeman, Montana.

59) T. Chang, M. Tian, Z. W. Barber, and W. R. Babbitt, "Modeling and Simulation of Optical Coherent Transient processes I: Optical Pulse Shaping," HBSM’2003, July 27-31, 2003, Bozeman, Montana.

60) T. Chang, K.D. Merkel, K.M. Rupavatharam, T. L. Harris and W.R. Babbitt, "Frequency Chirped Pulse Readout of Spectral Gratings for the S2-CHIP," HBSM’2003, July 27-31, 2003, Bozeman, Montana.

61) R. R. Reibel, Z. W. Barber, J. A. Fischer, M. Tian, W. R. Babbitt, "Theory and applications of linear sideband chirped programming",   HBSM’2003, July 27-31, 2003, Bozeman, Montana.

62) H. Li, Z. W. Barber, T. Chang, M. Tian, I. Zafarullah,  J. A. Fischer, and W.R. Babbitt, "Highly Efficient True-Time Delay Photon Echoes" HBSM’2003, , July 27-31, 2003, Bozeman, Montana.

63) M. A. Neifeld, W. R. Babbitt, R. Krishna Mohan, and A. E. Craig, "Power Budget Analysis of Image Plane Storage in Spectral Hole-Burning Materials," HBSM’2003, July 27-31, 2003, Bozeman, Montana.

64) M. Tian, Z. W. Barer, J. A. Fischer, W. R. Babbitt, “The Geometric Phase in two-level atomic system”, HBSM’2003, July.00 27-31, 2003, Bozeman, Montana.

65)  Z. W. Barber, J. Law, M. Tian, and W. R. Babbitt, “Optical Coherent Transient High Bandwidth Arbitrary Waveform Generation and Pulse Shaping”, HBSM’2003, Jul. 27-31, Bozeman. MT., 2003

66)  Coding Considerations for Analog Signal Processing Applications.  Source:  Poster A 8, Rupavatharam Krishna. M., 8th International Meeting on Hole Burning, Single Molecule, and Related Spectroscopies: Science and Applications HBSM 2003, Bozeman, MT., July 27 – 31, 2003

67) Z. Cole, R. R. Reibel, K. D. Merkel, T. Chang, W. R. Babbitt and R. Krishna Mohan "6.5 GHz analog optical signal processor based on coherent integration of complementary sequences" Conference of Lasers and Electro-Optics, May 2004, CLEO/IQEC and PhAST Technical Digest on CDROM (The Optical Society of America, Washington, DC, 2004), CME2.

68) M. Tian, Z. W. Barber, J. A. Fischer, and W. R. Babbitt,” Geometric phases and quantum operations in two-level atomic systems,” Conference of Lasers and Electro-Optics, May 2004, CLEO/IQEC and PhAST Technical Digest on CDROM (The Optical Society of America, Washington, DC, 2004), IME3.

69)  M. Tian, Z. W. Barber, J. A. Fischer, W. R. Babbitt, “Geometric Quantum Operations in Two-level atomic system”, CQIQC, Jul. 19-23, 2004, Toronto, Canada.

70) R. K. Mohan, Z. Cole, R. Reibel, T. Chang, K. D. Merkel, W. R. Babbitt, M. Colice, F. Schlottau, and K. H. Wagner, "Microwave Spectral Analysis Using Optical Spectral Holeburning,  Proc. of Topical Meeting on Microwave Photonics (MWP 2004), Ogunquit, Maine,  October 4-5 2004.

71) Randy R. Reibel, Tiejun Chang, Mingzhen Tian, and W. R. Babbitt, "Optical Linear Sideband Chirp Compression for Microwave Arbitrary Waveform Generation," Proc. of Topical Meeting on Microwave Photonics (MWP 2004), Ogunquit, Maine,  October 4-5 2004.

72) K. D. Merkel, R. K. Mohan, Z. Cole, R. R. Reibel, T. L. Harris, T. Chang, and W. R. Babbitt, "Analog Optical Signal Processing of Baseband Codes in Tm:YAG up to 10 Gb/s," Proc. of Topical Meeting on Microwave Photonics (MWP 2004), Ogunquit, Maine,  October 4-5 2004. (poster).

73)  C. J. Renner, T. Chang, R. R. Reibel, M. Tian, and W. R. Babbitt, "Photonic Chirp Compression and Arbitrary Waveform Generation for Micro- and Millimeter-Wave Applications," CLEO2005, paper CF12, Baltimore, MD May 23-27, 2005.

74) T. Chang, M. Tian, R. K. Mohan, C. J. Renner, K. D. Merkel, and W. R. Babbitt, "Recovery Technique for Chirped Readout of Spectral Features," CLEO2005, paper CF13, Baltimore, MD May 23-27, 2005.

75) R. R. Reibel, K. D. Merkel, Z. Cole, D. E. Benson, and W. R. Babbitt, "Real Time Wideband Optical Processing of S- and X-Band Signals for Advanced Radar Systems," paper CTuEE5,  Baltimore, MD May 23-27, 2005.

76) Z. Cole, R. R. Reibel, D. E. Benson, K. D. Merkel, W. R. Babbitt, and K. H. Wagner, "Coherent Lidar Range Processing of Broadband Optical Noise Waveforms," paper JThI5, Baltimore, MD May 23-27, 2005.

77) R. R. Reibel and K. D. Merkel, Z. Cole, D. E. Benson, T. Chang, R. Krishna Mohan and W. R. Babbitt. "Ultra-Wideband Analog Optical Signal Processing of Complex Waveforms For Range-Doppler Radar Measurements," GOMAC 2005

78) R. R. Reibel, D. E. Benson, T. Berg, Z. Cole, K. D. Merkel, W. R. Babbitt, "Range-Doppler Imaging Using an Analog Optical Signal Processor with Agile Waveform Sets," Microwave Photonics 2005, Souel Korea:  (Poster) 

79) Z. Cole, R. R. Reibel, D. E. Benson, K. D. Merkel, W. R. Babbitt, and K. H. Wagner, "Broadband Photonic Signal Processing of LIDAR Noise Waveforms" IEEE Microwave Photonics, Seoul S. Korea Oct 11 - 13 (2005).

80) M. Tian, I. Zafarullah, R. Krishna Mohan, T. Chang, C. W. Thiel, R. L. Cone, W. R. Babbitt, "Quantum Computing in Thulium Doped Crystals," Ninth International Conference on Hole Burning, Single Molecule and Related Spectroscopies: Science and Applications (HBSM'06), Aussois, France, June 24-29, 2006.

81) M. Tian, T. Chang, S. Bekker,  R. K. Mohan, K. D. Merkel, and W. R. Babbitt, “Recovery of Spectral Features Using Fast Chirp under Non-ideal Conditions”, Ninth International Conference on Hole Burning, Single Molecule and Related Spectroscopies: Science and Applications (HBSM'06),  Aussois, France, Jun. 24-29, 2006, poster.

82) T. Chang , M. Tian, and W. R. Babbitt, “Numerical Modeling of Optical Coherent Transient Processes with Complex Configurations --III:  Noisy laser source”, Ninth International Conference on Hole Burning, Single Molecule and Related Spectroscopies: Science and Applications (HBSM'06), Aussois, France, Jun. 24-29, 2006, poster.

83) R. Krishna Mohan (Invited Speaker), T. Chang, M. Tian, A. Olson, A. Khallaayoun, S. Bekker,  E. Noonan, C. Drollinger, R.R. Reibel, Z. Cole, K.D. Merkel, W.R. Babbitt, Y. Sun, R.L. Cone, M. Colice, F. Schlottau, and K. H. Wagner, "Ultrawideband Spectral Analysis using S2 Technology," Ninth International Conference on Hole Burning, Single Molecule and Related Spectroscopies: Science and Applications, Aussois, France, June 24-29, 2006 , Invited talk.

84) W. R. Babbitt, M. A. Neifeld, and K. D. Merkel, "Analog to Digital Conversion with Spatial-Spectral Holography,"  Ninth International Conference on Hole Burning, Single Molecule and Related Spectroscopies: Science and Applications, Aussois, France, June 24-29, 2006.

85) R. R. Reibel , Z. Cole, T. Berg, B. Kaylor, L. R. Mauritsen, and K. D. Merkel, R. K. Mohan, T. Chang, M. Tian, W. R. Babbitt, and K. H. Wagner.  "Real Time Wideband RF Spectrometer Using Spatial Spectral Optical Sensor Materials," Proceedings of Coherent Optical Technologies and Applications (COTA)  Conference.  Whistler, B.C., Canada. 7/2006. Published in proceedings.

86) P. A. Roos, W. R. Babbitt, Z. Cole, B. Kaylor, T. Berg, K. D. Merkel, and R. R. Reibel, "High-Resolution Range and Doppler LADAR Measurements Using Broadband Coherent Optical Processing," Proceedings of Coherent Optical Technologies and Applications (COTA) Conference.  Whistler, B.C., Canada. 7/2006. Published in proceedings.

87) R. R. Reibel , Z. Cole, T. Berg, B. Kaylor, K. D. Merkel, and W. R. Babbitt, "Real-Time Range-Doppler Radar Imaging Using a Coherent Holographic Analog Optical Signal Processor," Proceedings of Coherent Optical Technologies and Applications (COTA) Conference.  Whistler, B.C., Canada. 7/2006. Published in proceedings.

Non-Reviewed Conferences Proceedings

1)  W. R. Babbitt, Y. S. Bai, and T. W. Mossberg, "Convolution, Correlation, and Storage of Optical Data in Inhomogeneously Broadened Materials," Advances in Optical Information Processing II, Optical Information Processing II, P. R. Pape ed., SPIE Vol. 639, Bellingham, WA (1986), Orlando, Florida, April 3-4, 1986.

2)  G. L. Abbas, W. R. Babbitt, M. de La Chappelle, M. L. Fleshner, J. D. McClure, and E. J. Vertatschitsch, "High-precision fiber-optic position sensing using diode laser radar techniques," Laser Diode Technology and Applications II, Proceedings of the SPIE, Vol. 1219, Paper #1219-49, Los Angeles, CA, January 19, 1990.

3)  W.R. Babbitt, J. A. Bell, R. G. A. Craig, M. W. Derstine, and S. D. Smith, "Operation and tolerancing of a two-input optical programmable logic unit," (abstract only) OSA Annual Meeting Technical Digest 1990, Vol. 15, (Optical Society of America, Washington, D. C. ,1990), pg. 275.

4)  K. D. Merkel and W.R. Babbitt, "Coherent transient optical correlator without brief reference pulses," (abstract only) OSA Annual Meeting 1994, (pg. 177), Dallas, TX , October 2-7, 1994.

5) W. R. Babbitt, A. Mohan, and J. A. Ritcey, "All-optical signal encoder-decoder for secure communications," Proceedings of the SPIE, Multimedia Networks: Security, Displays, Terminals, and Gateways, Dallas, TX, Nov. 4-5  1997, Vol. 3228, pp. 354-65 (1998).

6) K. D. Merkel and W. R. Babbitt, "Chirped Pulse Programming of Spatial-Spectral Holographic True-Time Delays," The Eighth Annual DARPA Symposium on Photonic Systems for Antenna Applications, PSAA98, January 14-16, 1998, DTIC# ADB 223444 PAA.

7) W. R. Babbitt, M. Azadeh, and R. B. Darling, "Smart pixels with smart illumination for memory applications," " Proceedings of the SPIE, Advanced Optical Memories and Interfaces to Computer Storage, San Diego, CA, July 22-24, 1998, Vol. 3468, 108-15 (1998).

8) C. S. Cornish, M. Azadeh, W.R. Babbitt, and L. Tsang, "Efficient waveform recall in absorbing media," Proceedings of the SPIE, Advanced Optical Memories and Interfaces to Computer Storage, San Diego, CA, July 22-24, 1998, Vol. 3468, 174-81 (1998).

9) K. Merkel, J. Zhao, K. S. Repasky, and W.R. Babbitt, "Design issues in continuously programmed coherent transient processors," Proceedings of the SPIE, Advanced Optical Data Storage: Materials, Systems, and Interfaces to Computers, Denver, CO, July 20-22, 1999, Vol. 3802, 246-56 (1999).

10) J. Holroyd, X. Chen, K. S. Repasky, and W. R. Babbitt, “Scanning Differential Detector Using SPSI” Optical Science and Laser Technology Conference, Bozeman, Montana, August 14-16, 2000, poster.

11) Z. Barber, R. Reibel, and W. R. Babbitt, “Applications of Binary Phase Shift Keying for Inhomogeneously Broadened Materials” Optical Science and Laser Technology Conference, Bozeman, Montana, August 14-16, 2000, poster.

12) K. Merkel, P. B Sellin, R. D. Peters, K. S. Repasky and W. R. Babbitt, “Accumulated Complex Spectral Gratings Using a Frequency Stabilized Laser,” Optical Science and Laser Technology Conference, Bozeman, Montana, August 14-16, 2000.

13) Mingzhen Tian, R. Reibel, and W. R. Babbitt,  “GHz Band True Time Delay and Auto-Correlation Via Accumulated Picosecond Photon Echo Process” Optical Science and Laser Technology Conference, Bozeman, Montana, August 14-16, 2000.

14) Z. Barber, R. Reibel, M. Tian, W. R. Babbitt, “Application of Phase Modulated Optical Signals to Inhomogeneously Broadened Materials," poster, American Physical Society Annual Meeting, March 11, 2001, Seattle, WA.

15) R. Reibel, Z. Barber and W. R. Babbitt, “Amplification of High Bandwidth Phase Modulated Signals at 793 nm,” American Physical Society Annual Meeting, March 2001, Seattle, WA.

16) M. Tian, R. Reibel, and Wm. R. Babbitt, “Multi-gigahertz true-time-delay with optical coherent transient,” American Physical Society Annual Meeting, March 2001, Seattle, WA.

17) Multi-gigahertz range-Doppler correlative processing in crystals, Harris, Todd L.; Babbitt, Wm. Randall; Merkel, K. D.;  Krishna Mohan, R.; Cole, Zachary; Olson, Andy   Source: Proceedings of SPIE - The International Society for Optical Engineering, 5362, Advanced Optical and Quantum Memories and Computing, 2004, 31-42

18) R. K. Mohan, T. Chang, K. D. Merkel, and W. R. Babbitt, "Coding considerations for high bandwidth analog optical signal processing applications based on spectral holography," SPIE Photonics West 2004, January, 2004, Proc. of SPIE, Vol. 5362, Advanced Optical and Quantum Memories and Computing, pp. 20-30 (2004).

19) T. L. Harris, W. R. Babbitt, K. D. Merkel, R. K. Mohan, Z. Cole, A. Olson, "Multi-gigahertz range-Doppler correlative processing in crystals, " SPIE Photonics West 2004, January, 2004, Proc. of SPIE, Vol. 5362, Advanced Optical and Quantum Memories and Computing, pp. 31-42 (2004).

20) M. Colice, F. Schlottau, K. H. Wagner, R. K. Mohan, W. R. Babbitt, I. Lorgere, and J.-L. L. Gouet, "RF spectrum analysis in spectral hole burning media," Denver, CO, August 2004, Proc. of SPIE, Vol. 5557, 132–139 (2004).

Workshop Presentations and Lectures since 1995

1)  Montana State University, Dept. of Physics, Colloquium  “Spectral-Spatial Holographic Optical Storage and Processing,” 5/95.

2)  Workshop on "Multiple Wavelengths in Free-Space Optical Interconnects," Taos, NM, “Spatial-Spectral Holographic Network Devices,” 2/96.

3)  Workshop on Data Encoding for Page-oriented Optical Memories (DEPOM'96), Phoenix, AZ, “Persistent Spectral Hole-burning Memories & Processors,” 3/96.

4)  Workshop on Applications of Persistent Spectral Holeburning, Big Sky, MT, “Novel Applications of Spatial-Spectral Holography.  Status of Cryocooler Research," 3/96.

5)  Frontiers of Applications of Photospectral Holeburning Workshop, Big Sky, MT, "Coherent Transients in Inverted Media,"  2/97.

6)  C. Sjaarda Cornish, W. R. Babbitt, and L. Tsang, "Experimental Demonstration of Highly Efficient Photon Echoes in an Absorbing Medium." Workshop on Applications of Spectral Hole Burning 2000, Big Sky, Montana, July 9-12, 2000.

7)  K. D. Merkel, P. B. Sellin, R. D. Peters, K. S. Repasky and W. R. Babbitt, "Accumulated Complex Spectral Gratings using a Frequency Stabilized Laser," Workshop on Applications of Spectral Hole Burning 2000, Big Sky, Montana, July 9-12, 2000.

8)  R. D. Peters, P. B. Sellin, K. S. Repasky, and W. R. Babbitt, "Frequency Stabilization of a Ti:Sapphire Laser to a Non-Persistent Spectral Hole in Tm:YAG," Workshop on Applications of Spectral Hole Burning 2000, Big Sky, Montana, July 9-12, 2000, poster.

9)  R. Reibel, M. Tian, and W. R. Babbitt, "Optical Nutations on Three Pulse Accumulated Photon Echoes," Workshop on Applications of Spectral Hole Burning 2000, Big Sky, Montana, July 9-12, 2000, poster.

10) R. D. Peters, P. B. Sellin, K. S. Repasky, and W. R. Babbitt; "Frequency stabilization of a Ti: Sapphire laser to a non-persistent spectral hole in Tm:YAG," Spectral Hole Burning Workshop 2000; July 10, 2000.

11) Joe Fischer, Zeb Barber, Randy, Reibel, Mingzhen Tian, and Randy Babbitt, “Linear Phase Chirp Programming for OCT’s,” Optec2001, (Bozeman, MT, August, 2001).

12) R. Regester, K. Repasky,  X. Chen, J. Holroyd, N. Werth, and W. R. Babbitt, "Smart Pixels with Smart Illumination,"  NSF ECS Grantees Workshop, August 16, 2001, Fayetteville, AK.

13) W. R. Babbitt, “Spatial-Spectral Holographic Buffer Memory,” DARPA Workshop on Buffer Memories,” July 24, 2002, Arlington, VA.

14) W. R. Babbitt, “Analog Optical Signal Processing with Spectral-Spatial Holography,” Williams College, December 2003.

Patents Issued

1)  T. W. Mossberg, W. R. Babbitt, Y. S. Bai, and N. W. Carlson, "Optical Cross-Correlation and Convolution Apparatus," U. S. Patent No. 4,670,854 (June 2, 1987).

2)  W. R. Babbitt, R. G. Beausoleil, and D. A. Leep, "Multiple Laser Frequency Stabilization," U. S. Patent No. 4,930,133 (May 29, 1990).

3)  W. R. Babbitt, "Chirped Optical Sensor," U. S. Patent No. 5,030,824 (July 9,1991).

4)  W. R. Babbitt and J. A. Bell, "An optical signal processor for processing continuous signal data," U. S. Patent No. 5,239,548 (August 24, 1993).

5)  W. R. Babbitt, J. A. Bell, B. A. Capron, P. J. de Groot, R. L Hagman, J. A. McGarvey, W. D. Sherman, and P. F. Sjoholm, “Method and apparatus for measuring distance to a target,” U. S. Patent No. 5,589,928 (December 31, 1996).

6)  W. R. Babbitt and T. W. Mossberg, “Apparatus and methods for routing of optical beams via time-domain spatial-spectral filtering,” U. S. Patent No. 5,812,318 (September 22, 1998).

7) K. D. Merkel and W. R. Babbitt, "Optical coherent transient continuously programmed continuous processor," U. S. Patent No. 6,680,860M (January 20, 2004).

8) W. R. Babbitt and T. W. Mossberg, “Apparatus and methods for routing of optical beams via time-domain spatial-spectral filtering,” U. S. Patent No. 6,819,460 (November 16, 2004).

9) T. Chang, M. Tian, W. R. Babbitt, K. D Merkel, "Techniques for recovering optical spectral features using a chirped optical field," U. S. Patent No.  7,145,713 (December 5, 2006). 

10) K. D. Merkel and W. R. Babbitt, "Techniques for multiple frequency chirp readout of material with inhomogeneously broadened absorption spectrum," U. S. Patent No. 7,193,879 (March 20, 2007)

 

Updated January 20, 2008