Anisotropic gratings recorded from two circularly polarized coherent waves
| Autor: | J.M.C. Jonathan, Mondher Attia |
|---|---|
| Rok vydání: | 1983 |
| Předmět: |
Diffraction
Physics business.industry Isotropy Physics::Optics Grating Elliptical polarization Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Optical axis Superposition principle Optics Electrical and Electronic Engineering Physical and Theoretical Chemistry business Anisotropy Beam (structure) |
| Zdroj: | Optics Communications. 47:85-90 |
| ISSN: | 0030-4018 |
| DOI: | 10.1016/0030-4018(83)90092-5 |
| Popis: | A constant intensity, rectilinear light vibration, with spatially varying orientation, is obtained from superposition of two orthogonal circularly polarized waves propagating, in slightly different directions. Such an exposure on a photoanisotropic medium, prints a grating characterized only by spatial variations in the orientation of the induced optic axis. The diffraction properties of such a grating are investigated. It behaves as a uniformly transparent isotropic medium when illuminated by the same waves as during the recording process. Illumination by a circular wave, generates a transmitted and a single diffracted beam, while an incident elliptically polarized one would produce, apart from the central order, two diffracted beams with orthogonal circular polarizations. |
| Databáze: | OpenAIRE |
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