Development of Laser Dyes to Realize Low Threshold in Dye-Doped Cholesteric Liquid Crystal Lasers

Highly efficient luminescence dyes based on pyrene and anthracene derivatives (see figure) are synthesized for liquid crystal dye lasers. The threshold value of one of the pyrene derivatives is as low as 1/20 that of the commonly used DCM in cholesteric liquid crystal (CLC) distributed feedback lase...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2010-10, Vol.22 (40), p.4473-4478
Main Authors: Uchimura, Makoto, Watanabe, Yo, Araoka, Fumito, Watanabe, Junji, Takezoe, Hideo, Konishi, Gen-ichi
Format: Article
Language:English
Subjects:
Anthracenes - chemical synthesis
Anthracenes - chemistry
Cholesteric liquid crystals
Distributed feedback lasers
Dyes
Lasers, Dye
Lasing
Liquid Crystals - chemistry
Luminescent Agents - chemical synthesis
Luminescent Agents - chemistry
Pyrenes - chemical synthesis
Pyrenes - chemistry
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Summary:Highly efficient luminescence dyes based on pyrene and anthracene derivatives (see figure) are synthesized for liquid crystal dye lasers. The threshold value of one of the pyrene derivatives is as low as 1/20 that of the commonly used DCM in cholesteric liquid crystal (CLC) distributed feedback lasers. Good optical properties such as luminous efficiency and solubility in CLCs are important factors for realizing a low threshold.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201001046