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Chiral Parameter of Transparent Films Containing Polymer Cholesteric Liquid Crystal-R |
| TAO Wei-Dong1,2;PAN Xue-Feng1;CHEN Jian3;YAN Fei-Biao1;BAI Gui-Ru1;LU Zu-Kang2 |
| 1Department of Physics, Ningbo University, Ningbo 315211
2State Key Laboratory of Modern Optical Instrumentation, Department of Physics, Zhejiang University, Hangzhou 310027
3Nanjing College of Chemical Technology, Nanjing 210048 |
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TAO Wei-Dong, PAN Xue-Feng, CHEN Jian et al 2005 Chin. Phys. Lett. 22 931-933 |
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Abstract The transparent film containing a kind of polymer cholesteric liquid crystal-R was fabricated by the freezing method. The optical polarization response of the film was investigated by a self-manufactured apparatus and its optical rotatory dispersion was measured by a novel technique at the wavelength from 350nm to 660nm. At various wavelengths, the chiral parameter of the film has been obtained. The results show that the chiral parameter decreases as the wavelength increases. The maximum and minimum chiral parameters are 0.0343 at the wavelength of 350nm and 0.0058 at the wavelength of 660nm, respectively. The obtained data indicate that this kind of polymer cholesteric liquid crystal-R is a promising candidate host material for solid optical chiral waveguides.
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| Keywords:
73.43.Fj
74.25.Gz
78.20.Ek
78.55.Kz
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Published: 01 April 2005
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