摘要
提出用椭偏仪法测试了自制液晶空间光调制器(LCSLM)的相位调制色散特性.椭偏仪法具有光路简单,结果准确,测试自动化等优点,相比单色光源干涉仪测量方法更加简单实用.结果表明,在短波长(450nm)处,LCSLM的相位调制能力为1.54λ(λ=450 nm) ,在长波长(800 nm)处,LCSLM的相位调制能力为0 .70λ(λ=800 nm) ,与理论分析的色散特性基本一致.
The measurements of phase dispersions characteristics of liquid crystal spatial light modulator by ellipsometer are described. It was found that dispersions phase of liquid crystal is 1.09A at 1.5 V threshold voltage and 0. 24A at 3. 5 V saturation voltage in 450 nm～ 800 nm wave band. Theory on dispersions characteristics was analysed and found to have agreement with experimental result.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2007年第6期1065-1067,共3页
Acta Photonica Sinica
基金
国家自然科学基金(50473040
59973020
60277033
19974046)
吉林省科委基金(20020603
20010579)资助
关键词
液晶
空间光调制器
色散
椭偏仪
Liquid crystal
Spatial light modulator
Dispersive
Ellipsometer
