Type of tunable guided-mode resonance filter based on electro-optic characteristic of polymer-dispersed liquid crystal.
A narrowband guided-mode resonance filter (GMRF) incorporating polymer-dispersed liquid crystal (PDLC) is designed. Simulating the characteristics of the filter with rigorous coupled-wave analysis, we find that the resonance wavelength of the new kind of GMRF can be tuned from 672.4 to 698.4 nm by varying the refractive index of the PDLC layer with the applied voltage. Furthermore, the resonance wavelengths vary in a linear fashion with respect to the refractive index of the PDLC layer. Therefore, the desired resonance wavelength can be conveniently selected and tuned in a tuning range of 26 nm by using the applied voltage.
Wang
Qi
Q
Shanghai Key Laboratory of Modern Optics System, School of Optics-Electrical and Computer Engineering,University of Shanghai for Science and Technology, 516 Jungong Road, 200093 Shanghai, China.
Zhang
Dawei
D
Huang
Yuanshen
Y
Ni
Zhengji
Z
Chen
Jiabi
J
Zhong
Yangwan
Y
Zhuang
Songlin
S