Combined EPR/optical investigations of light-induced charge transfers in photorefractive materials
| Autor: | M. Meyer, O.F. Schirmer, C. Veber, A. Rüdiger |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
business.industry
Chemistry Organic Chemistry Nonlinear optics Charge (physics) Photorefractive effect Molecular physics Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Inorganic Chemistry Optics law Optical materials Light induced Electrical and Electronic Engineering Physical and Theoretical Chemistry business Electron paramagnetic resonance Absorption (electromagnetic radiation) Refractive index Spectroscopy |
| Zdroj: | Optical Materials. 18:1-6 |
| ISSN: | 0925-3467 |
| DOI: | 10.1016/s0925-3467(01)00119-7 |
| Popis: | A way to elucidate the light-induced charge transfer processes, which lead to refractive index changes in photorefractive materials, is outlined. Using this method, the electron paramagnetic resonance (EPR) information on the chemical identity and structure of defects, between which the transfers occur, is correlated to the corresponding optical absorption bands. On the basis of these bands alone charge transfer phenomena can then be analyzed. The determination of special charge transfer features is illustrated with examples on defects in BaTiO3. |
| Databáze: | OpenAIRE |
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