Image holography in CdF2:Ga crystals
| Autor: | Luis Arizmendi, J. M. Langer, Andrzej Suchocki, B. Koziarska-Glinka |
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| Rok vydání: | 1998 |
| Předmět: |
Dopant
Bistability business.industry Chemistry Organic Chemistry Doping Holography Nonlinear optics Photorefractive effect Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Optical bistability Inorganic Chemistry Optics law Optoelectronics Electrical and Electronic Engineering Physical and Theoretical Chemistry business Refractive index Spectroscopy |
| Zdroj: | Optical Materials. 10:313-318 |
| ISSN: | 0925-3467 |
| DOI: | 10.1016/s0925-3467(98)00007-x |
| Popis: | The recording of an image hologram in CdF 2 :Ga crystals at room temperature is reported. Writing the phase holographic pattern utilizes a unique property of Ga and In doped CdF 2 crystals, namely, the bistability of these dopants. In contrast to CdF 2 :In crystals, in which there is only one bistable center, the holographic experiment reveals two different bistable centers in CdF 2 :Ga. Room temperature bistability is related to Ga, while the low temperature center resembles very much the properties of In, likely a non-intentional In dopant of the CdF 2 :Ga crystals. The holographic sensitivity of doped CdF 2 crystals compares favorably with sensitivity of standard photorefractive materials. The main advantage for some applications of using the novel mechanism is the inherently local nature of the light-induced refractive index changes. |
| Databáze: | OpenAIRE |
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