PHOTODOPING EFFECT AND ULTRAFAST CARRIER RELAXATION IN INSULATING YBACUO AND ND2CUO4 THIN-FILMS

Authors
ICHIDA M MATSUDA K NAKAMURA A NABATAME T HIRABAYASHI I
Citation
M. Ichida et al., PHOTODOPING EFFECT AND ULTRAFAST CARRIER RELAXATION IN INSULATING YBACUO AND ND2CUO4 THIN-FILMS, Journal of luminescence, 66-7(1-6), 1995, pp. 379-382
Citations number
8
Categorie Soggetti
Optics
Journal title
Journal of luminescence → ACNP
ISSN journal
00222313
Volume
66-7
Issue
1-6
Year of publication
1995
Pages
379 - 382
Database
ISI
SICI code
0022-2313(1995)66-7:1-6<379:PEAUCR>2.0.ZU;2-Z
Abstract
We have investigated femtosecond photodoping effects in insulating YBa 2Cu3O6.2 and Nd2CuO4 thin films by means of femtosecond pump-probe spe ctroscopy. A change in the whole absorption spectrum in the visible re gion is observed after irradiation by femtosecond laser pulses, and th is can be explained as a carrier doping effect induced by a laser puls e. The fast decay behavior of the charge-transfer excited state result s from the nonradiative transition with emission of magnons.