Proceedings of the International Display Workshops Volume 31 (IDW '24)
Dec 4 - Dec 6, 2024Sapporo Convention Center
Proceedings of the International Display Workshops Volume 31 (IDW '24)
Dec 4 - Dec 6, 2024Sapporo Convention Center
[LCT6-3]Hyperspectral Filters via Oblique Helicoidal Cholesteric Liquid Crystals with Elastomeric Polymer Networks
*Jun-Hyung Im1, Yeongseon Choi1, Eunsu Cho1, Daeseop Choi1, Won-Sik Kim1, Hyein Kim1, Young-Ki Kim1(1. Pohang University of Science and Technology (Korea))
Keywords:
hyperspectral filter,oblique helicoidal cholesteric liquid crystal,elastomeric polymer network
Spectral filters play a key role in analyzing spectral information. However, previous filters have limitations in poor color purity, low transmittance, and low tunability. Here we demonstrate a hyperspectral tunable filter by using polymer-stabilized oblique helicoidal cholesteric liquid crystal, providing high level tuning in transmission wavelength with narrow bandwidth (< ~20 nm).