Wm. Randall Babbitt

 Professor of Physics

Director of the Spectrum Lab

 

Address:

Physics Department

EPS Building, Room 264

Montana State University-Bozeman

Bozeman, MT  59717-3840

 

Physics Phone: (406) 994-6156

Physics Fax: (406) 994-4452

Teaching Email:  babbitt_teaching09 at physics dot Montana dot edu

Research Email: babbitt at physics dot Montana dot edu

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: 2310 University Way, Building #4-2


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 Stanford University

Ph.D. Physics, 1987 Harvard University


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 353: Holography

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
Bozeman, Montana July 27 – 31, 2003

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