Title | Advantages of Highly Ordered Polymer-Dyes for Lasing in Chiral Nematic Liquid Crystals |
Publication Type | Journal Article |
Year of Publication | 2004 |
Authors | Shin, K-C, Araoka, F, Park, B, Takanishi, Y, Ishikawa, K, Zhu, Z, Swager, TM, Takezoe, H |
Journal | Japanese Journal of Applied Physics |
Volume | 43 |
Pagination | 631–636 |
Date Published | feb |
ISSN | 0021-4922 |
Keywords | ordered polymer dye lasing chiral nematic liq crystal |
Abstract | Lasing in dye-doped chiral nematic liq. crystals (N*LCs) was studied. To demonstrate the advantages of using a polymer dye, that is highly aligned along the local director of N*LCs, over com. small mol. dyes such as 4-(dicyanomethylene)-2-Me-6-(4-dimethylaminostryl)-4H-pyran (DCM), comparative studies of the fluorescence, lasing conditions and order parameters were made using polymer-dye doped N*LC and DCM-doped N*LC cells. Right- and polarized fluorescence spectra for both dyes were accurately simulated by taking account of their d. of modes and order parameters. The greater alignment afforded by the polymer dye in N*LCs provides ideal conditions for lasing. [on SciFinder(R)] |
URL | http://jjap.jsap.jp/link?JJAP/43/631/ |
DOI | 10.1143/JJAP.43.631 |