| Autor: |
Matusevich, A., Tolstik, A., Kisteneva, M., Shandarov, S., Matusevich, V., Kiessling, A., Kowarschik, R. |
| Jazyk: |
angličtina |
| Rok vydání: |
2008 |
| Popis: |
A photorefractive Bi12TiO20 (BTO) crystal is exposed with high intensity pulsed-laser beams 532 nm (the average intensity of the laser was 110mW/cm2, the average intensity per pulse was 2MW/cm2), and the photo-induced dynamics of the absorption between 480 and 900 nm are studied and explained by two long-lived energy levels in the forbidden band. The relaxation times of the long-lived energy levels are experimentally found to be 104 and 105 s. The hysteresis character of the absorption coefficient is discussed. PACS 42.70.Mp; 42.70.Gi |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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