Electrically tunable diffraction of light from 2D nematic colloidal crystals

被引：18

作者：

Humar, M. ^{[1
]}

Skarabot, M. ^{[1
]}

Ravnik, M. ^{[2
]}

Zumer, S. ^{[2
]}

Poberaj, I. ^{[2
]}

Babic, D. ^{[2
]}

Musevic, I. ^{[1
,2
]}

机构：

[1] Jozef Stefan Inst, Ljubljana 1000, Slovenia

[2] Univ Ljubljana, Fac Math & Phys, Ljubljana 1000, Slovenia

来源：

EUROPEAN PHYSICAL JOURNAL E | 2008年 / 27卷 / 01期

关键词：

D O I：

10.1140/epje/i2008-10353-0

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We show that diffraction of visible light from 2D dipolar nematic colloidal crystals can be tuned electrically. When the external electric field of similar to 1V/mu m is applied in a direction perpendicular to the plane of the 2D colloidal crystal, the induced strain is highly anisotropic, and the inter-colloidal spacing changes by as much as 20% along one direction and similar to 2% along the perpendicular one. Although the speed of response is in the range of several seconds, this novel mechanism could provide interesting photonic applications.

引用

页码：73 / 79

页数：7

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