| Issue |
EPJ Web Conf.
Volume 335, 2025
EOS Annual Meeting (EOSAM 2025)
|
|
|---|---|---|
| Article Number | 08017 | |
| Number of page(s) | 2 | |
| Section | Topical Meeting - Optical Materials | |
| DOI | https://doi.org/10.1051/epjconf/202533508017 | |
| Published online | 22 September 2025 | |
https://doi.org/10.1051/epjconf/202533508017
Space-charge waves in a Bi12TiO20 photorefractive crystal
Laboratório de Óptica, Faculdade de Tecnologia - UNICAMP, Limeira-SP, Brazil.
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Published online: 22 September 2025
Abstract
We studied space-charge waves caused by the competition between holes and electrons in an undoped Bi12TiO20 photorefractive crystal and generated during holographic recording with a 532 nm wavelength laser light and the reflection geometry. A non-linear relation between the velocity of the resonant space-charge waves and light intensity, as well as the photovoltaic effect, is demonstrated. The experimental data is in good agreement with the theoretical model reported here.
© The Authors, published by EDP Sciences, 2025
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