Significant photoinduced refractive index change observed in porous silicon Fabry-Perot resonators

Citation
M. Takahashi et al., Significant photoinduced refractive index change observed in porous silicon Fabry-Perot resonators, APPL PHYS L, 76(15), 2000, pp. 1990-1992
Citations number
16
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS LETTERS
ISSN journal
0003-6951 → ACNP
Volume
76
Issue
15
Year of publication
2000
Pages
1990 - 1992
Database
ISI
SICI code
0003-6951(20000410)76:15<1990:SPRICO>2.0.ZU;2-G
Abstract
It is shown that a porous silicon Fabry-Perot resonator device exhibits a s ignificant nonlinear optical transmission behavior at wavelengths in the ne ar-infrared region. The input-output (transmission-incident power) response curve shows superlinear or sublinear behavior dependent on excitation wave lengths around the resonant position. These characteristics are interpreted as a result of nonlinear refractive index change, including by enhanced op tical power in the Fabry-Perot cavity configuration and carrier accumulatio n in silicon nanocrystallites. The result leads to further progress of nano crystalline silicon into functional photonic device applications. (C) 2000 American Institute of Physics. [S0003-6951(00)03815-8].