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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Veröffentlicht in:	Advanced materials (Weinheim) 2010-10, Vol.22 (40), p.4473-4478
Hauptverfasser:	Uchimura, Makoto, Watanabe, Yo, Araoka, Fumito, Watanabe, Junji, Takezoe, Hideo, Konishi, Gen-ichi
Format:	Artikel
Sprache:	eng
Schlagworte:	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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Beschreibung
Zusammenfassung:	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