NOVEL DYNAMIC DIAGNOSIS OF FEMTOSECOND TIME-TRANSIENT NONEQUILIBRIUM STATE IN OPTICALLY-EXCITED YBCO THIN-FILMS

Authors
TONOUCHI M TANI M WANG Z SAKAI K HANGYO M WADA N MURAKAMI Y
Citation
M. Tonouchi et al., NOVEL DYNAMIC DIAGNOSIS OF FEMTOSECOND TIME-TRANSIENT NONEQUILIBRIUM STATE IN OPTICALLY-EXCITED YBCO THIN-FILMS, Czechoslovak journal of Physics, 46, 1996, pp. 1095-1096
Citations number
7
Categorie Soggetti
Physics
Journal title
Czechoslovak journal of Physics → ACNP
ISSN journal
00114626
Volume
46
Year of publication
1996
Supplement
2
Pages
1095 - 1096
Database
ISI
SICI code
0011-4626(1996)46:<1095:NDDOFT>2.0.ZU;2-5
Abstract
Terahertz emission from optically excited YBCO thin films has been int erpreted in terms of a femtosecond time-transient quasiparticle dynami cs. The analysis of the emission waveforms based on Rothwarf-Tailor ra te equations suggested that quasiparticle recombination time and pair breaking time are shorter than 1 ps and longer than 7 ps, respectively , except near T-c.