Journal
APPLIED PHYSICS LETTERS
Volume 88, Issue 6, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2168259
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This work examines a planar cholesteric liquid crystal (CLC) cell with a negative dielectric anisotropy, doped with laser dye, as an electrically tunable one-dimensional photonic crystal laser device. The lasing wavelength is demonstrated to be tunable by applying a voltage. Additionally, lasing can be switched on and off changing the frequency of the applied voltage. Wavelength tuning caused by the shift of the reflection band of CLC is attributed to the electrohydrodynamical effect in the negative dielectric cell. (c) 2006 American Institute of Physics.
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