@inproceedings{69d9b9d1607e481eb65af90396d779c9,
title = "Tunable diffractor using liquid crystals and carbon black nanoparticles",
abstract = "We investigate two tunable transmission diffractors: utilizing nano droplet polymer-dispersed liquid crystals (nano-PDLCs) and electrophoretic carbon black (CB) nanoparticles. Both approaches use similar electric field formation using interdigitated electrodes while the nano-PDLC utilizes electric field-induced phase modulation (induced birefringence) by Kerr effect from an optically isotropic transparent state and the CB diffractor generates slit and switches the slit distance in between dark region. The CB diffractor is polarization independent on an incident light and so is its diffracted beam whereas the nano-PDLC diffractor is polarization dependent. The CB diffractor can tune the diffraction slit width and angle by controlling the applied voltage. The complementary properties of nano-PDLC and CB nanoparticles offer applications for various optical modulation needs.",
keywords = "carbon black nanoparticles, optically isotropic nano-droplet liquid crystals, tunable diffractors",
author = "Han, \{Chae Lim\} and Han, \{Yeon Jin\} and Choi, \{Gyu Ri\} and Lim, \{Young Jin\} and Lee, \{Seung Hee\} and Kim, \{Min Su\}",
note = "Publisher Copyright: , {\textcopyright} 2025 SPIE.; Emerging Liquid Crystal Technologies XX 2025 ; Conference date: 27-01-2025 Through 29-01-2025",
year = "2025",
doi = "10.1117/12.3041169",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Liang-Chy Chien and Tabiryan, \{Nelson V.\} and Jun Yamamoto",
booktitle = "Emerging Liquid Crystal Technologies XX",
}