Speckle suppression using a liquid-crystal cell
| Autor: | Maxim Minchenko, T B Andreeva, A. L. Andreev, E. P. Pozhidaev, I. N. Kompanets |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Materials science
business.industry Physics::Optics Statistical and Nonlinear Physics Laser Electromagnetic radiation Ferroelectricity Atomic and Molecular Physics and Optics Light scattering Electronic Optical and Magnetic Materials law.invention Speckle pattern Optics Liquid crystal law Optoelectronics Electrical and Electronic Engineering business Phase modulation Coherence (physics) |
| Zdroj: | Quantum Electronics. 38:1166-1170 |
| ISSN: | 1468-4799 1063-7818 |
| DOI: | 10.1070/qe2008v038n12abeh013894 |
| Popis: | A simple method for suppressing speckles in images produced by laser projectors is proposed. The coherence of the laser beam and, therefore, speckles can be destroyed when the beam passes through an electrooptical cell in which a special ferroelectric liquid crystal is used as a modulating medium. The effect is achieved due to the spatially inhomogeneous phase modulation of light when specially shaped bipolar electric pulses are applied to the cell. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|