Switching behaviour of ferroelectric liquid crystals probed by optical second-harmonic generation

被引：3
|
作者：
Fokin, YG
Murzina, TV
Aktsipetrov, OA
Soria, S [1 ]
Marowsky, G
机构：
[1] Moscow MV Lomonosov State Univ, Dept Phys, Moscow 119899, Russia
[2] Laser Lab Goettingen eV, D-37077 Gottingen, Germany
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2002年 / 74卷 / 7-8期
关键词：
D O I：
10.1007/s00340-002-0921-9
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Ferroelectric properties of thin (1.5-4 mum planar cells of a ferroelectric liquid crystal (FLC) mixture are studied using electro-optic measurements, second-harmonic generation (SHG) and SHG interferometry. A switching behaviour of the FLC cells in external dc electric fields is observed. It is characterised by rotation of the polarisation plane of the transmitted light and by changes in the SHG intensity, phase and anisotropy dependences, which are attributed to a collective motion of the system as a ferroelectric uniform state with C-2 symmetry.
引用
收藏
页码：777 / 781
页数：5
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