| Autor: |
J. Villarroel, M. Carrascosa, J. Carnicero, A. García-Cabañes, J. M. Cabrera, Niklaus Ursus Wetter, Jaime Frejlich |
| Rok vydání: |
2008 |
| Předmět: |
|
| Zdroj: |
AIP Conference Proceedings. |
| ISSN: |
0094-243X |
| DOI: |
10.1063/1.2926884 |
| Popis: |
Light intensity effects on recording photorefractive gratings have been studied in α‐phase proton exchanged LiNbO3 guides. The saturating refractive index change increases as a function of the recording intensity and reaches an unstable region above a certain intensity threshold. The threshold value increases with the exchange time used for preparing the guides, showing a behavior quite similar to that observed with a single beam (non holographic) configuration. Dark decay measurements indicate that dark conductivity can be disregarded with regard to photoconductivity. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
