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Mirrorless Lasing in a Dye‐Doped Ferroelectric Liquid Crystal
Author(s) -
Ozaki M.,
Kasano M.,
Ganzke D.,
Haase W.,
Yoshino K.
Publication year - 2002
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 - 10.1002/1521-4095(20020219)14:4<306::aid-adma306>3.0.co;2-1
Subject(s) - lasing threshold , materials science , ferroelectricity , liquid crystal , laser , optoelectronics , doping , wavelength , electric field , photonic crystal , optics , photonics , physics , dielectric , quantum mechanics
Laser action in a dye‐doped ferroelectric liquid crystal (FLC)—at the edge of the photonic stop band—has been demonstrated for the first time. The FLC used is a multicomponent mixture with a well‐controlled short pitch of its helical structure whose periodic is equivalent to visible optical wavelengths. The laser emission is optically pumped and can be tuned by changing the temperature, which alters the periodicity of the helical structure. FLCs are expected to find electrooptic applications because of their fast response to an electric field.