Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Jeffrey W. Grantham"'
Autor:
F. Brown de Colstoun, H. M. Gibbs, D. Boggavarapu, R. Jin, A. E. Paul, C. W. Lowry, Galina Khitrova, Murray Sargent, Thomas M. Brennan, B. E. Hammons, Jeffrey W. Grantham, S. W. Koch
Publikováno v:
Physical Review Letters. 71:1534-1537
Coherent transfer of energy (CTE) gives rise to a new peak and dip in the probe gain spectrum that move proportionally with the intracavity injected power showing that stimulated emission and absorption significantly speed up the semiconductor respon
Publikováno v:
Physical Review Letters. 66:1422-1425
The cell-exit transverse profile for one-way propagation through sodium vapor forms a pattern of spots with complexity and beauty rivaling that of a kaleidoscope. These patterns are stationary in time, reproduce completely when the power or frequency
Autor:
Todd C. Monson, John T. Sackos, Steve M. Lebien, Steve W. Childress, Robert O. Nellums, Jeffrey W. Grantham
Publikováno v:
SPIE Proceedings.
Scannerless laser radar (LADAR) is the next revolutionary step in laser radar technology. It has the potential to dramatically increase the image frame rate over raster-scanned systems while eliminating mechanical moving parts. The system presented h
Publikováno v:
SPIE Proceedings.
Laser radar images of an outdoor target scene were collected in adverse weather such as rain and fog during the course of one year. Included in this collection is imagery in fogs with visibilities less than 2 km and rains with rain rates of up to 60
Autor:
Carl F. Diegert, Todd C. Monson, Robert O. Nellums, John T. Sackos, Steve M. Lebien, Jeffrey W. Grantham
Publikováno v:
SPIE Proceedings.
Sandia National Laboratories has developed a unique type of portable low-cost range imaging optical radar (laser radar or LADAR). This innovative sensor is comprised of an active floodlight scene illuminator and an image intensified CCD camera receiv
Publikováno v:
SPIE Proceedings.
Publikováno v:
SPIE Proceedings.
c.J. Christensen, V.M. Bright, *J\y Grantham, and J.H. ComtoisAir Force Institute of TechnologyDepartment of Electrical and Computer EngineeringWright-Patterson AFB, OH 45433-7765*wrightLaboratory, Armament DirectorateEglin AFB, FL 32542ABSTRACTA ten
Autor:
B. E. Hammons, C. W. Lowry, A. E. Paul, Murray Sargent, Francois Brown de Colstoun, Thomas M. Brennan, Jeffrey W. Grantham, D. Boggavarapu, R. Jin, Hyatt M. Gibbs, Stephan W. Koch, Galina Khitrova
Publikováno v:
SPIE Proceedings.
Coherent energy transfer gives rise to a new peak and dip in the probe gain spectrum that moveproportionally with the mtracavity injected power, showing that stimulated emission and absorptionsignificantly speed up the semiconductor response.1. INTRO
Autor:
Galina Khitrova, J. F. Valley, J. Xu, Francois Brown de Colstoun, Hyatt M. Gibbs, C. W. Lowry, Jeffrey W. Grantham, H. Iwamura, Min Liang, T. Ikegami, Y. Kawamura
Publikováno v:
SPIE Proceedings.
Self-focusing leads to bifurcations of transverse solitary waves in sodium vapor (2D) and to second-order spatial solitons in a GaAs planar waveguide gain medium (1D). Transverse patterns in vertical-cavity surface-emitting lasers are shown to contai
Autor:
Thomas M. Brennan, Murray Sargent, Jeffrey W. Grantham, C. W. Lowry, Yiping Z. Hu, Galina Khitrova, B. E. Hammons, D. Boggavarapu, R. Jin, A. E. Paul, Hyatt M. Gibbs, Stephan W. Koch, Francois Brown de Colstoun
Publikováno v:
SPIE Proceedings.
Injection of a cw narrow-band laser beam into a lasing vertical- cavity surface-emitting laser results in the appearance of new frequencies on the way to injection locking as predicted by our theoretical model. Injection also causes a local asymmetri