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Polarization aberrations of electrically tunable liquid crystal mirrors
Optics Express
|May 15, 2020
Summary
Researchers developed tunable liquid crystal (LC) mirrors, which can adjust wavefronts and polarization aberrations. This innovation offers optical engineers new design possibilities for compact optical systems.
Area of Science:
- Optics and Photonics
- Materials Science
Background:
- Curved mirrors are crucial for compact optical systems by folding light paths.
- Liquid crystals (LCs) offer tunable optical properties.
Purpose of the Study:
- To develop and characterize electrically tunable liquid crystal mirrors.
- To investigate polarization aberrations in both flat and curved LC mirror configurations.
Main Methods:
- Fabrication and optical testing of tunable liquid crystal mirrors.
- Analysis of wavefronts and polarization aberrations under varying conditions.
Main Results:
- LC mirrors demonstrated spatially continuous tunable wavefronts.
- Wavefront characteristics were found to depend on incidence angle, light polarization, and LC alignment.
Conclusions:
- Tunable liquid crystal mirrors offer adjustable polarization aberrations.
- This tunability provides optical engineers with additional parameters for versatile optical system design.
