DocumentCode
3784512
Title
Transient gratings in InSb at two-photon excitation
Author
K. Jarasiunas;S. Stonys;E. Sirmulis
Author_Institution
Department of Semiconductor Physics, Vilnius V. Kapsukas State University, Lithuanian SSR, U.S.S.R.
Volume
22
Issue
8
fYear
1986
Firstpage
1341
Lastpage
1343
Abstract
We report a study of transient phase grating in InSb at room temperature induced by two-photon absorption of pulsed CO<2 laser radiation. From our results, we deduce a value of the ambipolar diffusion coefficientD \simeq 26 cm2. s-1and of the lifetime of carriersT_{R} \simeq 54 ns. The behavior of the grating and the change of refractive index confirms the free-carrier plasma being dominant in the modulation of nonlinear optical properties.
Keywords
"Gratings","Plasma properties","Optical modulation","Laser excitation","Plasma temperature","Absorption","Optical pulses","Refractive index","Nonlinear optics","Optical refraction"
Journal_Title
IEEE Journal of Quantum Electronics
Publisher
ieee
ISSN
0018-9197
Type
jour
DOI
10.1109/JQE.1986.1073103
Filename
1073103
Link To Document