期刊
APPLIED PHYSICS LETTERS
卷 82, 期 23, 页码 4026-4028出版社
AMER INST PHYSICS
DOI: 10.1063/1.1580992
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Laser action in a waveguide configuration has been demonstrated in a planar alignment cell of dye-doped chiral smectic liquid-crystal mixtures with a short pitch helical structure. In this configuration, doped dye can effectively be excited by a pump beam illuminating perpendicularly the helical axis and the laser light emitted along the helical axis propagates in the waveguide. Lasing wavelength can be tuned by adjusting the periodicity of the helical pitch upon applying the electric field. (C) 2003 American Institute of Physics.
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