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Electro‐Tunable Liquid‐Crystal Laser
Author(s) -
Ozaki M.,
Kasano M.,
Kitasho T.,
Ganzke D.,
Haase W.,
Yoshino K.
Publication year - 2003
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.200304448
Subject(s) - materials science , lasing threshold , electric field , liquid crystal , optoelectronics , photonic crystal , laser , wavelength , optics , spiral (railway) , enhanced data rates for gsm evolution , photonics , physics , mathematical analysis , telecommunications , mathematics , quantum mechanics , computer science
Lasing that is color‐tunable via application of an electric field has been demonstrated at the edge of the 1D photonic band of a dye‐doped chiral smectic liquid crystal with a periodic spiral structure. The lasing wavelength, which can be shifted by 40 nm using a relatively low electric field, is tuned by the electric field adjusting the periodicity of the helical structure (see Figure).