Lammel, Oliver and Penzkofer, Alfons and Tsuboi, Taiju (2002) Picosecond laser saturable absorption studies on F-2(-) colour centres in LiF crystal. OPTICS COMMUNICATIONS, 206 (4-6): PII S0030-. pp. 389-400. ISSN 0030-4018
Full text not available from this repository. (Request a copy)Abstract
The saturable absorption behaviour of F-2 colour centres in LiF is studied by picosecond laser pulse excitation (wavelength lambda(L) = 1054 nm, duration Deltat(L) = 6 ps). The colour centre number density, N-u, the ground-state absorption cross-section, sigma(L), and the single-photon excited-state absorption cross-section, are determined by numerical fitting the energy density dependent energy transmission. A decrease of energy transmission at high excitation energy densities (w(0L) > 1 J cm(-2)) is attributed to two-photon absorption of other colour centres (N-1 and N-2 bands of F-4 centres) present in the sample. (C) 2002 Elsevier Science B.V. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | CENTERS; DYES; BAND; colour centres; LiF crystal; F-2 centres; saturable absorption; excited-state absorption; two-photon absorption; colour centre concentration |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Alfons Penzkofer |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 26 Oct 2021 05:59 |
| Last Modified: | 26 Oct 2021 05:59 |
| URI: | https://pred.uni-regensburg.de/id/eprint/40218 |
Actions (login required)
 |
View Item |
