Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.2426885
Title: Effect of liquid crystal concentration on the lasing properties of dye-doped holographic polymer-dispersed liquid crystal transmission gratings
Authors: Liu, Y.J.
Sun, X.W.
Elim, H.I. 
Ji, W. 
Issue Date: 2007
Citation: Liu, Y.J., Sun, X.W., Elim, H.I., Ji, W. (2007). Effect of liquid crystal concentration on the lasing properties of dye-doped holographic polymer-dispersed liquid crystal transmission gratings. Applied Physics Letters 90 (1) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.2426885
Abstract: Optically pumped single-mode lasing was achieved from a 4-(dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)- 4H -pyran dye-doped holographic polymer-dispersed liquid crystal transmission grating with various liquid crystal concentrations, which played an important role in the lasing generation and wavelength selection. With the decrease of the liquid crystal concentration, under the excitation of a frequency-doubled Nd:yttrium aluminum garnet laser operating at 532 nm, the lasing wavelength was blueshifted, and the full width at half maximum of the lasing peak became narrower. The lowest threshold pumping energy was found to be about 5 μJ pulse at a liquid crystal concentration of 19.7 wt %. The lasing emission was thermally switchable due to the change of the refractive index modulation. © 2007 American Institute of Physics.
Source Title: Applied Physics Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/96317
ISSN: 00036951
DOI: 10.1063/1.2426885
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