Phototunable photonic bandgap in a chiral liquid crystal laser device

被引：138

作者：

Furumi, S ^{[1
]}

Yokoyama, S ^{[1
]}

Otomo, A ^{[1
]}

Mashiko, S ^{[1
]}

机构：

[1] Natl Inst Informat & Commun Technol, Kansai Adv Res Ctr, Nishi Ku, Kobe, Hyogo 6512492, Japan

来源：

APPLIED PHYSICS LETTERS | 2004年 / 84卷 / 14期

关键词：

D O I：

10.1063/1.1699445

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

This letter describes the phototunable photonic bandgap of cholesteric liquid crystal (CLC) doped with a fluorescent dye to generate the distributed feedback effect. Photoirradiation of the dye-doped CLC cell under UV light at 254 nm resulted in continuous changes in the chiral photonic bandgap from 550 to 720 nm due to photolysis reaction of the cholesteryl iodide embedded in the CLC host. We showed that the laser oscillation wavelength could be controlled in a wide wavelength range from 610 to 700 nm by photoassisted adjustment of CLC photonic bandgaps. (C) 2004 American Institute of Physics.

引用

页码：2491 / 2493

页数：3

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