Surface-sustained permanent gratings in nematic liquid crystals doped with carbon nanotubes

被引：44

作者：

Lee, W ^{[1
]}

Chen, HY ^{[1
]}

Yeh, SL ^{[1
]}

机构：

[1] Chung Yuan Christian Univ, Dept Phys, Chungli 32023, Taiwan

来源：

OPTICS EXPRESS | 2002年 / 10卷 / 11期

关键词：

D O I：

10.1364/OE.10.000482

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Response properties of photoinduced gratings were studied in planar cells of liquid crystal doped with multiwalled carbon nanotubes. The grating formation time deduced from beam-coupling measurements was obtained to be similar to30 ms. Absorption spectroscopy implies that the permanent gratings are associated with periodically distributed carbonaceous material adsorbed on the inner surfaces of the cell windows under prolonged illumination to the 514.5-nm beams, giving rise to the persistent light-induced modulation of the easy axis.

引用

页码：482 / 487

页数：6

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