Interband photorefraction in Sn2P2S6 at visible wavelengths
| Autor: | Roger Mosimann, Mojca Jazbinsek, D. Haertle, Peter Günter, Germano Montemezzani |
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| Přispěvatelé: | Laboratoire Matériaux Optiques, Photonique et Systèmes (LMOPS), CentraleSupélec-Université de Lorraine (UL), Université de Lorraine (UL)-CentraleSupélec |
| Jazyk: | angličtina |
| Rok vydání: | 2006 |
| Předmět: |
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics]
Materials science business.industry Bragg's law Nonlinear optics Volume hologram Statistical and Nonlinear Physics Photorefractive effect 01 natural sciences Atomic and Molecular Physics and Optics 010309 optics Orders of magnitude (time) 0103 physical sciences Optoelectronics Charge carrier Atomic physics 010306 general physics business Refractive index ComputingMilieux_MISCELLANEOUS Visible spectrum |
| Zdroj: | Journal of the Optical Society of America B Journal of the Optical Society of America B, Optical Society of America, 2006, 23, pp.1620-1625 |
| ISSN: | 0740-3224 1520-8540 |
| Popis: | Continuous-wave photorefractive experiments in Sn2P2S6 crystals and interband photorefraction at the visible wavelengths of 514 and 488 nm are presented. Two-wave mixing and Bragg diffraction measurements at 514 nm show grating response times of around 100 μs at moderate light intensities of 0.6 W/cm2, i.e., 2 orders of magnitude faster than measured in the same crystal in the conventional photorefractive regime. A large two-wave mixing gain of up to Γ=60±8 cm−1 is measured, and holes are identified as dominant charge carriers for the interband photorefractive effect. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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