Flat cholesteric liquid crystal polymeric lens with low f-number
Abstract
We use a simple photoalignment method to fabricate four reflective cholesteric liquid crystal (CLC) polymeric lenses with diameter D=2.45 cm and low f-numbers (f/2, f/0.9, f/0.45, f/0.33) at 550 nm. Such a flat CLC lens can be converging or diverging, depending on the handedness and direction of the incident light. Our CLC lenses can achieve ∼85% diffraction efficiency for a designated polarization state and manifest decent imaging ability.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Feb 14, 2020
- Source ID
- 10.1364/oe.387942
Entities
People
- Shin-Tson Wu
- Tao Zhan
- Yannanqi Li
Organizations
- Air Force Office of Scientific Research
- Intel Corporation