FEMTOSECOND TIME-RESOLVED SPECTROSCOPY OF THE PHOTOINDUCED STRUCTURAL-CHANGES IN ALKALI-HALIDE CRYSTALS

Authors
FUJIWARA H SUZUKI T TANIMURA K
Citation
H. Fujiwara et al., FEMTOSECOND TIME-RESOLVED SPECTROSCOPY OF THE PHOTOINDUCED STRUCTURAL-CHANGES IN ALKALI-HALIDE CRYSTALS, Progress in crystal growth and characterization of materials, 33(1-3), 1996, pp. 109-112
Citations number
7
Categorie Soggetti
Crystallography,"Materials Science, Characterization & Testing
Journal title
Progress in crystal growth and characterization of materials → ACNP
ISSN journal
09608974
Volume
33
Issue
1-3
Year of publication
1996
Pages
109 - 112
Database
ISI
SICI code
0960-8974(1996)33:1-3<109:FTSOTP>2.0.ZU;2-Z
Abstract
Dynamics of the formation of self-trapped excitons (STE's) and Frenkel pairs upon band-gap excitation in alkali chlorides has been studied a t temperatures from 6 to 300 K, it is found that the relaxation of ele ctron-hole pairs can be divided into two distinct stages with differen t nature. Frenkel pairs are formed at both stages, whereas the off-cen ter STE's are generated only at the second stage Characteristic featur es of relaxation pathways in chlorides have been discussed on comparin g with those in bromides.