Surface-induced orientational phase transition in a lyotropic liquid crystal observed by nonlinear optical techniques -: art. no. 061707

被引：0
|
作者：
Bechtold, IH
Gómez, SL
Bonvent, JJ
Oliveira, EA
Hohlfeld, J
Rasing, T
机构：
[1] Univ Nijmegen, NSRIM, NL-6525 ED Nijmegen, Netherlands
[2] Univ Mogi das Cruzes, BR-08780911 Sao Paulo, Brazil
[3] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil
来源：
PHYSICAL REVIEW E | 2004年 / 69卷 / 06期
关键词：
D O I：
暂无
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
We have observed a phase transition from a uniaxial to a biaxial nematic phase in a lyotropic liquid crystal as a function of decreasing film thickness. The results, obtained by optical second-harmonic generation experiments in a wedged cell geometry, are supported by additional Z-scan measurements and can be interpreted by wall-induced ordering effects.
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页数：5
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