SPATIAL SOLITONS IN PHOTOREFRACTIVE BI12TIO20 WITH DRIFT MECHANISM OF NONLINEARITY

被引：287
|
作者：
CASTILLO, MDI
AGUILAR, PAM
SANCHEZMONDRAGON, JJ
STEPANOV, S
VYSLOUKH, V
机构：
[1] INAOE, Puebla, ZP 72000, PUE
来源：
APPLIED PHYSICS LETTERS | 1994年 / 64卷 / 04期
关键词：
D O I：
10.1063/1.111163
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The analysis performed shows that in cubic photorefractive crystals (of Bi12SiO20 and GaAs type in particular) with drift (''quasilocal'') mechanism of optical nonlinearity spatial soliton propagation can be observed for reasonable external de electric fields 10-15 kV/cm. These photorefractive solitons which can be excited at very low cw laser power are stable in a broad region of signal(soliton)/incoherent(spatially uniform) intensity ratio, and allow easy switching from bright to dark type. Original experimental results of self-channeling of submicrowatt HeNe laser beam in a cubic Bi12TiO20 Sample under external de field are presented.
引用
收藏
页码：408 / 410
页数：3
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