Wavelength-selective photonic switching in paraelectric potassium lithium tantalate niobate
| Autor: | Aharon J. Agranat, Lavi Secundo, Meir Razvag, Noam Golshani |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Diffraction
Materials science Potassium niobate business.industry Organic Chemistry Lithium niobate Physics::Optics Photorefractive effect Grating Diffraction efficiency Space charge Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Inorganic Chemistry chemistry.chemical_compound Optics chemistry Lithium tantalate Electrical and Electronic Engineering Physical and Theoretical Chemistry business Spectroscopy |
| Zdroj: | Optical Materials. 18:195-197 |
| ISSN: | 0925-3467 |
| DOI: | 10.1016/s0925-3467(01)00166-5 |
| Popis: | A generic wavelength-selective switching method is presented. The method is based on the voltage-controlled photorefractive effect in paraelectric crystals. The switch consists of a crystal at the paraelectric phase in which a space charge grating was stored by a photorefractive process. Diffraction occurs by the application of a uniform electric field that causes the space charge grating to induce an index grating. Results of the diffraction efficiency as a function of the applied field and the time dependence of the diffracted beam are presented. The performance envelop of a switch based on this effect is briefly discussed. |
| Databáze: | OpenAIRE |
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