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Published on: May 15, 2017
Integration of liquid crystal elements for creating an infrared Lyot filter
Mitsunori Saito1, Keisuke Hayashi
1Department of Electronics and Informatics, Ryukoku University, Seta, Otsu 520-2194, Japan. msaito@rins.ryukoku.ac.jp
Optics Express
|June 6, 2013
Summary
Researchers developed a novel infrared Lyot filter using liquid crystals and silicon prisms. This device efficiently separates light by polarization and wavelength, enabling new optical filtering applications.
Area of Science:
- Optics and Photonics
- Materials Science
Background:
- Lyot filters are crucial optical components for wavelength selection.
- Traditional Lyot filters can be bulky and complex.
Purpose of the Study:
- To fabricate an integrated infrared Lyot filter.
- To utilize liquid crystal and silicon prism technology for polarization and wavelength manipulation.
Main Methods:
- Integrated a polarization beam splitter with two retarders into a single device.
- Employed liquid crystal layers between silicon pentaprisms at a 28° incidence angle.
- Utilized Brewster's angle for p-polarized transmission and total internal reflection for s-polarized light.
Main Results:
- Achieved polarization-dependent light manipulation (transmission/reflection).
- Induced wavelength-dependent retardation using a liquid crystal retarder.
- Demonstrated a functional infrared Lyot filter with wavelength-selective output.
Conclusions:
- The integrated device effectively functions as an infrared Lyot filter.
- This novel design offers a compact and efficient approach to optical filtering.
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