Influence of a Time-Dependent Applied Electric Field on the Photocurrent in Photorefractive Materials
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| Format: | Artículo científico |
| Langue: | en |
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Sociedade Brasileira de Física
2014
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| _version_ | 1876429800089845760 |
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| author | L. M. Cervantes |
| author_facet | L. M. Cervantes |
| contents | Influence of a Time-Dependent Applied Electric Field on the Photocurrent in Photorefractive Materials L. M. Cervantes A. Zúñiga L. F. Magaña J. G. Murillo Física, Astronomía y Matemáticas EMF Non Photo linear optics From the differential material rate equations, we found an additional term to the usual expression of the pho- tocurrent, which appears only when a time-dependent external electric field is applied. This term influences the photocurrent in the material. We applied our equations to a Bi12SiO20 sample, under an applied sinusoidal electric field. This sample is illuminated with an oscillating interference pattern formed by two plane light waves, one of which is phase-modulated with frequency ω. We found good agreement with experimen- tal results. Besides, for this case, our prediction for the photo- current is better than the usual prediction of the photocurrent for low values of ω. 2014 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46431147005 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.4 Vol.44 |
| format | Artículo científico |
| id | redalyc_46431147005 |
| institution | Redalyc |
| language | en |
| publishDate | 2014 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | Influence of a Time-Dependent Applied Electric Field on the Photocurrent in Photorefractive Materials L. M. Cervantes Física, Astronomía y Matemáticas EMF Non Photo linear optics Influence of a Time-Dependent Applied Electric Field on the Photocurrent in Photorefractive Materials L. M. Cervantes A. Zúñiga L. F. Magaña J. G. Murillo Física, Astronomía y Matemáticas EMF Non Photo linear optics From the differential material rate equations, we found an additional term to the usual expression of the pho- tocurrent, which appears only when a time-dependent external electric field is applied. This term influences the photocurrent in the material. We applied our equations to a Bi12SiO20 sample, under an applied sinusoidal electric field. This sample is illuminated with an oscillating interference pattern formed by two plane light waves, one of which is phase-modulated with frequency ω. We found good agreement with experimen- tal results. Besides, for this case, our prediction for the photo- current is better than the usual prediction of the photocurrent for low values of ω. 2014 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46431147005 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.4 Vol.44 |
| title | Influence of a Time-Dependent Applied Electric Field on the Photocurrent in Photorefractive Materials |
| topic | Física, Astronomía y Matemáticas EMF Non Photo linear optics |
| url | https://www.redalyc.org/articulo.oa?id=46431147005 |