Photo-Polymerization in Chiral Dopant Liquid Crystal Cells via Holographic Exposure to Fabricate Polarization-Independent Phase Modulator with Fast Optical Response

Polymers

Chia-Rong Sheu¹  Pin-Kuan Sung¹  Chun-Yu Chien¹ 

[1] Department of Photonics, National Cheng Kung University, Tainan 70101, Taiwan;

关键词: chiral dopant;    liquid crystals;    polarization-independence;    phase modulator;   

DOI  :  10.3390/polym10030315

来源: DOAJ

【 摘 要 】

Small liquid crystal domains with random director distributions were obtained to show novel optical isotropy using a holographic exposure processes to treat chiral dopant liquid crystal cells in the isotropic phase (i.e., polymer-stabilized isotropic liquid crystal cells). The cells used to fabricate phase modulators showed unique performances, including low light scattering, polarization-independence, and fast optical response. Furthermore, an extra fluoro-surfactant dopant in cells showed that the phase modulators retained their performance but with considerable reduction of operating voltages, from 180 Vrms to 100 Vrms.

【 授权许可】

Unknown