[LCTp5] New LC Technologies

[LCTp5-7L] Tunable Narrow-bandpass Filter Using Blue Phase Liquid Crystal Etalon for Real-time Multi-spectral Imaging Systems

*Kosuke Shinatake¹, Takahiro Ishinabe¹, Yosei Shibata¹, Hideo Fujikake¹ (1. Tohoku University (Japan))

Keywords:blue phase liquid crystal, liquid crystal filter, fabry–perot etalon, spectral imaging

We proposed a tunable narrow-bandpass filter using a blue phase liquid crystal etalon filter and a multi-bandpass interference filter for real-time multi-spectral imaging systems. We theoretically clarified this filter has high transmittance > 80% and confirmed a control of transmission wavelengths can be achieved by this filter.