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Influence of a Time-Dependent Applied Electric Field on the Photocurrent in Photorefractive Materials

  • Condensed Matter
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Abstract

From the differential material rate equations, we found an additional term to the usual expression of the photocurrent, 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 experimental results. Besides, for this case, our prediction for the photocurrent is better than the usual prediction of the photocurrent for low values of ω.

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Acknowledgments

LF Magaña thanks Dirección General de Asuntos del Personal Académico de la Universidad Nacional Autónoma de México partial financial support by Grant IN100111. A Zúñiga would like to thank useful discussions with A.V. Khomenko and N. Korneev, and SIP-IPN grant 20140888.

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Authors and Affiliations

  1. Escuela Superior de Cómputo, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, Código Postal 07730, Mexico, Distrito Federal, Mexico

    L. M. Cervantes

  2. Escuela Superior de Física y Matemáticas, Instituto Politécnico Nacional, Edificio 9, Unidad Profesional Adolfo López Mateos, Código Postal 07738, Mexico, Distrito Federal, Mexico

    A. Zúñiga

  3. Instituto de Física, Universidad Nacional Autónoma de México, Apartado Postal 20-364, Código Postal 01000, Mexico, Distrito Federal, Mexico

    L. F. Magaña

  4. Centro de Investigación en Materiales Avanzados, Miguel de Cervantes120, Complejo Industrial Chihuahua, Código Postal 31109, Chihuahua, Chihuahua, Mexico

    J. G. Murillo

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  1. L. M. Cervantes
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  2. A. Zúñiga
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  3. L. F. Magaña
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  4. J. G. Murillo
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Correspondence to A. Zúñiga.

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Cervantes, L.M., Zúñiga, A., Magaña, L.F. et al. Influence of a Time-Dependent Applied Electric Field on the Photocurrent in Photorefractive Materials. Braz J Phys 44, 334–339 (2014). https://doi.org/10.1007/s13538-014-0231-9

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  • DOI: https://doi.org/10.1007/s13538-014-0231-9

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