FILAMENTATION AND UNDULATION OF SELF-FOCUSED LASER-BEAMS IN LIQUID-CRYSTALS

被引：43

作者：

BRAUN, E

FAUCHEUX, LP

LIBCHABER, A

MCLAUGHLIN, DW

MURAKI, DJ

SHELLEY, MJ

机构：

[1] PRINCETON UNIV,PROGRAM APPL & COMPUTAT MATH,PRINCETON,NJ 08544

[2] NYU,COURANT INST MATH SCI,NEW YORK,NY 10012

[3] PRINCETON UNIV,NEC RES INST,PRINCETON,NJ 08544

[4] NEC RES INST,PRINCETON,NJ

来源：

EUROPHYSICS LETTERS | 1993年 / 23卷 / 04期

关键词：

BEAM TRAPPING; SELF FOCUSING; THERMAL BLOOMING; AND RELATED EFFECTS; OPTICAL MATERIALS;

D O I：

10.1209/0295-5075/23/4/001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We describe an experimental and theoretical study of a low-power, continuous-wave laser beam interacting with a nematic liquid crystal. Experimental observations show strong self-focusing, the onset of beam undulation and filamentation. A coupled-field model is presented and reduced through a separation of scales perturbation argument. This analysis shows that the light-nematic interaction is very different from conventional self-focusing in Kerr (nonlinear Schrodinger) media, and it provides a new optical setting for the study of the physics of complex nonlinear patterns.

引用

页码：239 / 244

页数：6

共 7 条

[1]

ARECCHI FT, 1987, INSTABILITIES CHAOS

[2] STRONG SELF-FOCUSING IN NEMATIC LIQUID-CRYSTALS [J].

BRAUN, E ;

FAUCHEUX, LP ;

LIBCHABER, A .

PHYSICAL REVIEW A, 1993, 48 (01) :611-622

[3]

DEGENNES PG, 1974, PHYSICS LIQUID CRYST

[4]

MURAKI DJ, UNPUB LASER LIGHT IN

[5]

Shen Y.-R., 1984, PRINCIPLES NONLINEAR

[6] ORIENTATIONAL OPTICAL NONLINEARITY OF LIQUID-CRYSTALS [J].

TABIRYAN, NV ;

SUKHOV, AV ;

ZELDOVICH, BY .

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1986, 136 (01) :1-139

[7]

[No title captured]

← 1 →