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Lasing in Dye‐Doped Cholesteric Liquid Crystals: Two New Tuning Strategies
Author(s) -
Chanishvili A.,
Chilaya G.,
Petriashvili G.,
Barberi R.,
Bartolino R.,
Cipparrone G.,
Mazzulla A.,
Oriol L.
Publication year - 2004
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200306542
Subject(s) - materials science , cholesteric liquid crystal , lasing threshold , doping , wavelength , optoelectronics , dye laser , liquid crystal , laser , ultraviolet , optics , physics
Tuning of a dye‐doped cholesteric liquid crystal mirrorless laser in the violet– ultraviolet wavelength range is achieved using two different strategies for controlling the periodicity of the cholesteric helical structures. Both methods are shown produce a shift of the lasing wavelength by 30–40 nm, and smooth variation of the helical pitch can be achieved (see Figure).
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