title: Integration of liquid crystal elements for creating an infrared Lyot filter.
abstract: An infrared Lyot filter was fabricated by integrating a polarization beam splitter and two retarders into a single device. A liquid crystal layer was constructed between two silicon pentaprisms that were designed suitably so that light was incident on this layer at 28°. At this angle, the liquid crystal transmitted p-polarized light (Brewster's angle) and reflected s-polarized light (total internal reflection). The p- or s-polarized light was directed to another liquid crystal layer (retarder) between the prism and a mirror, which induced a wavelength-dependent retardation in the reflection process. Consequently, the light that returned to the beam splitter was transmitted or reflected depending on wavelength.
authors.affiliation: Department of Electronics and Informatics, Ryukoku University, Seta, Otsu 520-2194, Japan. msaito@rins.ryukoku.ac.jp
authors.forename: Mitsunori
authors.initials: M
authors.lastname: Saito
authors.forename: Keisuke
authors.initials: K
authors.lastname: Hayashi
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D005374:Filtration / Q000295:instrumentation*; D007259:Infrared Rays; D007368:Interferometry / Q000295:instrumentation*; D007909:Lenses; D012031:Refractometry / Q000295:instrumentation*; D020349:Surface Plasmon Resonance / Q000295:instrumentation*; D018511:Systems Integration