Chinese Optics Letters, 2010, 8 (12): 1167, Published Online: Dec. 21, 2010
Electrically controlled optical choppers based on holographic polymer dispersed liquid crystal gratings Download: 688次
聚合物分散液晶光栅 光斩波器 占空比 230.2090 Electro-optical devices 090.2890 Holographic optical elements 050.1950 Diffraction gratings 230.3720 Liquid-crystal devices
Abstract
An electrically controlled optical chopper based on switchable holographic polymer dispersed liquid crystal (H-PDLC) gratings is demonstrated through a programmable, adjustable, and periodic external driving source. Compared with traditional mechanical optical choppers, the H-PDLC chopper exhibits many advantages, including faster response time, less waveform deformation, as well as easier integration, control, and fabrication, to name a few. Its excellent performance makes the device potentially useful in frequency modulation optical systems, such as frequency division multiplexed microscopy system.
Jihong Zheng, Guoqiang Sun, Ken Wen, Tingting Wang, Songlin Zhuang, Yanjun Liu, Stuart Yin. Electrically controlled optical choppers based on holographic polymer dispersed liquid crystal gratings[J]. Chinese Optics Letters, 2010, 8(12): 1167.