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
收藏
页码：L437 / L439
页数：3
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