LANG, PT and KNOTT, WJ and WERLING, U and RENK, KF and CAMPBELL, JA and JONES, GD (1991) TEMPERATURE-DEPENDENCE OF THE SATURATION OF THE H- LOCAL-MODE ABSORPTION IN CAF2 BY USE OF A TUNABLE CARBON-DIOXIDE LASER. PHYSICAL REVIEW B, 44 (13). pp. 6780-6784. ISSN 0163-1829,
Full text not available from this repository.Abstract
We have studied the temperature dependence of the saturation of the local-vibrational-mode absorption of H- ions in CaF2 crystals by use of a tunable, high-pressure carbon dioxide laser. We tuned the laser to the peak of the strongly temperature-dependent local-mode absorption line and found, in the temperature range 4 to 110 K, strongly temperature-dependent saturation behavior. An analysis of the results shows that the saturation behavior is determined by three-phonon decay of the local mode. From our results we derive an anharmonic lifetime of 17 ps at low temperature and we estimate, furthermore, an effective vibrational charge of about one electronic charge for the local mode.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ; |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:46 |
| URI: | https://pred.uni-regensburg.de/id/eprint/54849 |
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