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....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.展开更多
基金supported by the National Science Foundation for Young Scholars of China (No. 60801041)the Shanghai Rising-Star Program (No. 10QA1405100)the Scientific Research Starting Foundation for Returned Overseas Chinese Scholars,Ministry of Education,China(No.3310302002)
文摘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.
