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- Title
Dynamics of Nonequilibrium Gratings Induced in Silicon Films by Femtosecond Laser Pulses.
- Authors
Galyautdinov, M. F.; Lobkov, V. S.; Moiseev, S. A.; Negrashov, I. V.
- Abstract
Relaxation of the dynamic gratings formed by nonequilibrium charge carriers in thin single-crystal silicon films during femtosecond laser excitation was studied. The case of the ultimate concentration of carriers (N ≈ 10[sup 21] cm[sup -3]) is considered. Ambipolar diffusion and Auger recombination contributions to the grating decay are estimated. The observation of a long-lived grating at pump intensity above 5 × 10[sup 11] W/cm² is reported.
- Subjects
DIFFRACTION gratings; SEMICONDUCTOR lasers; THIN films
- Publication
Semiconductors, 2001, Vol 35, Issue 12, p1366
- ISSN
1063-7826
- Publication type
Article
- DOI
10.1134/1.1427971