Electrically tunable optical filter for visible wavelength using a liquid crystal multiplexed to a Fabry-Perot etalon

被引:0
|
作者
Blanca, CM [1 ]
Gutierrez, RC
Domingo, ZB
机构
[1] Univ Philippines, Natl Inst Phys, Instrumentat Phys Lab, Quezon City 1101, Philippines
[2] Univ Philippines, Natl Inst Phys, Liquid Crystal Lab, Quezon City 1101, Philippines
来源
MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2001年 / 368卷
关键词
Fabry-Perot; PDLC; optical filter; Michelson interferometer;
D O I
暂无
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Using the refractive index modulation in liquid crystals by an externally applied electric field, we show that a polymer dispersed liquid crystal (PDLC) can be used in a Fabry-Perot etalon to produce a tunable optical filter for use in the visible region. Voltage applied to the film changes the refractive index and the optical length of the cavity, converting the system into an interference filter with a variable frequency bandwidth. We demonstrate further that the wavelength can be tuned over 150 nm using less than 20 V of power.
引用
收藏
页码:4023 / 4030
页数:8
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