Several modes are simulated in parameter space to find profitable mode for amp SLM design and RTN52° with high reflectance, high dDn and low phase shift is used for experiment. The reflectance and contrast are measured on a RTN52° LCOS device.
Optimize the working model of LCoS (Liquid Crystal on Silicon) in parameter space by simulation. Two models are selected, which is suitable for phase modulating. One is the RTN-52° model, the other is parallel alignment ECB model. Phase changing is measured when various voltage are applied to Lcos. Show some results when the Lcos is used as a Fresnel lens.