TRANSIENT PHOTOCURRENTS IN PHOTOCONDUCTIVE SEMICONDUCTORS GENERATED BY STEP-PHASE MODULATIONS

Authors
DAVIDSON F WANG CC TRIVEDI S
Citation
F. Davidson et al., TRANSIENT PHOTOCURRENTS IN PHOTOCONDUCTIVE SEMICONDUCTORS GENERATED BY STEP-PHASE MODULATIONS, Optics letters, 20(2), 1995, pp. 175-177
Citations number
6
Categorie Soggetti
Optics
Journal title
Optics letters → ACNP
ISSN journal
01469592
Volume
20
Issue
2
Year of publication
1995
Pages
175 - 177
Database
ISI
SICI code
0146-9592(1995)20:2<175:TPIPSG>2.0.ZU;2-Q
Abstract
Transient photocurrents generated in photoconductive semiconductors by two coherently interfering optical fields in two-wave mixing experime nts were observed when the signal beam was phase modulated by a step s ignal. Expressions describing the behavior of the transient photocurre nt were derived and verified experimentally. Such transient photocurre nts are insensitive to the static carrier phase differences between th e two optical fields and can be used to detect sudden phase variations between two interfering optical fields.