1. Polarization conversions of diffractive wave plates based on orthogonal circular-polarization holography
- Author
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Changshun Wang, Peng Cai, Pengfei Zeng, Jianhao Wang, and Hongjing Li
- Subjects
Physics ,Polarization rotator ,business.industry ,Linear polarization ,Physics::Optics ,Transverse wave ,02 engineering and technology ,Elliptical polarization ,021001 nanoscience & nanotechnology ,01 natural sciences ,Waveplate ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,010309 optics ,Optics ,0103 physical sciences ,Degree of polarization ,Radial polarization ,Optoelectronics ,Electrical and Electronic Engineering ,0210 nano-technology ,business ,Circular polarization - Abstract
A polarization holographic grating, which integrates the functions of a grating and a wave plate and is called a diffractive wave plate, is recorded by two beams (left and right circularly polarized) of a 532 nm laser in an azo polymer with a liquid-crystal structure. The polarization conversion characteristics of the diffractive wave plates are investigated with a detecting light of 650 nm by metering the polarization state of first-order diffracted light. It is confirmed that the diffractive wave plates convert the incident linear polarization into circular polarization for a linearly polarized probe laser and reverse the sense of rotation of the circular polarization when the detecting light is circularly polarized light.
- Published
- 2016