Wm. Randall Babbitt
Professor of Physics
Director of the Spectrum Lab
Address:
Montana State University-Bozeman
Physics Phone: (406) 994-6156
Physics Fax: (406) 994-4452
Teaching
Email: babbitt_teaching09
at physics dot
Research
Email: babbitt at physics dot
Office: EPS 210
Lab: EPS 106
Spectrum Lab Phone: (406) 994-1797
Spectrum Lab Fax: (406) 994-6767
Spectrum Lab Email: babbitt
at spectrum dot montana dot edu
Office:
Links
My
Research Group in Physics
and
The
Spectrum Lab at MSU
My Research Interests
Laser Development for remote sensing and chemical detection
RF Photonics, Optical signal
processors, and Spectral-spatial holography
Spectral-spatial holography
Spatial-spectral holography combines the spatial storage and processing attributes of volume holography with spectral storage and processing attributes of persistent spectral holeburning. Spatial-spectral holographic (SSH) phenomenon encompasses optical coherent transients, photon echoes, and time-domain spectral holeburning. SSH materials have the ability to record the Fourier transforms of two temporally separated, modulated light beams in a spectral hologram analogous to the manner in which angled beams are recorded in spatial holograms. A SSH material is basically a fully programmable spectral-spatial filter with ultra-high spectral resolution and broad processing bandwidth whose impulse response is dictated by the programming pulses and their temporal shapes and their relative delay and direction. An appropriately programmed material processes incoming broadband optical beams by multiplying their Fourier decomposition by the material's programmed frequency response, resulting in a processed output temporal waveform. SSH materials thus offer an unmatched ability to store, process, and route complex broadband optical signals with precise phase and delay control.
My Education
B.S. Physics, 1982
Ph.D. Physics, 1987
Publications
Wm. Randall Babbitt Publications
More Information
For more information on Spatial-Spectral Holography
(a.k.a Optical Coherent Transients , Time-Domain Spectral Holeburning, Photon Echoes)
visit:
Spectral
Holography: Basic Concepts(Slides)
Spectral
Holography: Fourier Transform Approach(Slides)
Spectral
Holography: Efficient Coherent Transient Data Recall in Optically Thick
Media (Slides)
Spatial-Spectral
Holography: Basics and Applications for Frequency Division Multiplexing(Slides)
Spatial-Spectral
Holography: Optical Coherent Transient True-Time Delays and Processing
Arrays(Short Summary)
Spatial-Spectral
Holography: True-Time Delays and Adaptive Beamforming for Phased Arrays(Slides)
Spatial-Spectral
Holography: True-Time Delays with Chirped Reference Pulses(Slides)
Spatial-Spectral
Holography: Codes Development for Optical Coherent Transient Processors(Slides)
For
more information on Smart Pixels with Smart Illumination visit:
Smart
Pixels with Smart Illumination: Concept (Slides)
Smart
Pixels with Smart Illumination: Concept (Word Document)
My Research Group
Students
Current MSU Undergraduate Students: Nathan Haydon and Erin Marie Egbert;
Current MSU Graduate Students: Scott Wagemann and Gregory Gabrielsen
Past Graduate Students: Ijaz
Zafarullah (Ph.D., MSU), Randy Reibel (Ph.D., MSU), Carrie Sjaarda Cornish
(Ph.D., UW), Moe Azadeh (Ph.D., UW), Zack Cole(M. S., MSU), Robert
Peters(M. S., MSU), Xiaofang Chen (M.S., MSU) and Kristian D. Merkel(Ph.D.,
UW).
Classes (Spring 2009)
Physics
361: Laboratory Electronics II
Classes previously taught:
Physics 213: General and Modern
Physics III
Physics 222: General and Modern Physics II
Links
Spectrum Lab
Optical Technology Center
8th International Meeting on Hole Burning, Single
Molecule,
and Related
Spectroscopies: Science and Applications
9th International Meeting on Hole Burning, Single Molecule,
and Related Spectroscopies: Science and Applications
Centre Paul Langevin, Aussois
(France), 24-29 June 2006
Workshop on the Storage and Manipulation of Quantum Information in Optically-Addressed Solids
January 25-27, 2008 at Bozeman , Montana
Fun Links
Eating crabs with Kris Merkel in Baltimore, May 1997.
Updated 1/20/2009