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Start Over "Fan, Y.H." Journal journal of materials science: materials in electronics
15 results on '"Fan, Y.H."'

1. All-optical polarization-independent diffraction in dye-doped cholesteric liquid crystal.

Author

Y. Wang, M. Pei, P. Peng, and G. Carlisle

Abstract

We present a detailed description of a novel dye-doped cholesteric LC cell that exhibits polarization-independent diffraction based on a photochromic mechanism. The photochromic phase grating exhibited over 90% polarization independence of the writing beams, and over 90% polarization-independent self and probe diffractions were observed. No external ac or dc field is needed for operation. Unpolarized light can also be used for writing-in beam and/or read-out beam, making this method immediately suitable for applications of light modulation. To our knowledge this cell represents the first example of polarization-independent photochromic phase modulation and light diffraction, for both writing and probe beams, in an anisotropic liquid crystalline material. [ABSTRACT FROM AUTHOR]

Published
2006

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