Lowring lasing threshold in chiral nematic liquid crystal structure with different anisotropies

被引：28

作者：

Chee, Mu Guen ^{[1
]}

Song, Myoung Hoon

Kim, Doseok

Takezoe, Hideo

Chung, In Jae

机构：

[1] Korea Adv Inst Sci & Technol, Dept Chem & Biomol Engn, Taejon 305701, South Korea

[2] Sogang Univ, Dept Phys, Seoul 121742, South Korea

[3] Sogang Univ, Interdisciplinary Program Integrated Biotechnol, Seoul 121742, South Korea

[4] Tokyo Inst Technol, Dept Organ & Polymer Mat, Meguro Ku, Tokyo 1528552, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 2007年 / 46卷 / 17-19期

关键词：

lasing; cholesteric liquid crystal; photonic band gap; laser;

D O I：

10.1143/JJAP.46.L437

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Cholesteric liquid crystal (CLC) cells were fabricated using three kinds of nematic liquid crystal (NLC) materials with different optical birefringent anisotropies Delta n. A larger Delta n of NLCs results in a larger photonic band gap (PBG) width and higher density of states (DOS) at the PBG edge for each CLC cell. We were able to lower the threshold energy by a factor of more than two using CLC cells with a broader PBG width.

引用

页码：L437 / L439

页数：3

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