화학공학소재연구정보센터
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, Vol.368, 4171-4178, 2001
One beam controllable grating in a liquid crystal cell with an azo polymer surface
We propose a novel grating in a nematic liquid crystal cell with an azo polymer surface (APS). In this system, the polarization grating inscribed on APS modulates the liquid crystal director. The grating effect can be enhanced or reduced by polarization switching of only one pump beam due to strong polarization sensitivity of azobenzene chromophores.