DocumentCode
1110495
Title
Dynamics of population gratings in NdP5 O14 crystals
Author
Powell, Richard C. ; Tyminski, Jacek K. ; Ghazzawi, Ali M. ; Lawson, Christopher M.
Author_Institution
Department of Physics, Oklahoma State University, Stillwater, OK
Volume
22
Issue
8
fYear
1986
fDate
8/1/1986 12:00:00 AM
Firstpage
1355
Lastpage
1359
Abstract
Four-wave mixing signals from transient population gratings established in NdP5 O14 crystals were analyzed to obtain information on the pumping dynamics and exciton migration characteristics in this material. As the laser pump wavelength is scanned through an Nd3+absorption band, the exciton diffusion coefficient is found to vary in a manner consistent with site selection within the inhomogeneously broadened profile. Deviations from simple signal decay patterns are observed whenever the laser is tuned to excited state resonances. In addition, recent theoretical developments are applied to the grating decay data to determine the degree of coherence in the exciton motion.
Keywords
Laser applications, measurement; Neodymium materials/devices; Optical diffraction gratings; Crystals; Excitons; Four-wave mixing; Gratings; Information analysis; Laser excitation; Laser tuning; Pump lasers; Signal analysis; Transient analysis;
fLanguage
English
Journal_Title
Quantum Electronics, IEEE Journal of
Publisher
ieee
ISSN
0018-9197
Type
jour
DOI
10.1109/JQE.1986.1073132
Filename
1073132
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