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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 13, Iss. 11 — Nov. 1, 1996
  • pp: 2622–2629

Holographic-current study in laser and photorefractive crystals

N. Noginova, N. Kukhtarev, M. A. Noginov, Bo Su Chen, H. J. Caulfield, and P. Venkateswarlu  »View Author Affiliations


JOSA B, Vol. 13, Issue 11, pp. 2622-2629 (1996)
http://dx.doi.org/10.1364/JOSAB.13.002622


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Abstract

We modified the theory of the holographic current, describing both the steady-state and the transient contributions and accounting for the parameters of the measurement circuit. In the model of the transient photocurrent we connected the observables of the steplike modulation experiment with the carrier transport parameters such as carrier diffusion and screening length, carrier effective lifetime, and Maxwell relaxation time. Experimentally, we have shown that theoretically predicted dependences of the photocurrent amplitude and relaxation time on the grating period, the light intensity, and the depth of the modulation were observed not only in the photorefractive Sr1−xBaxNb2O6 and Bi12/sub>TiO20 crystals but in Er-doped YSGG laser crystals as well.

© 1996 Optical Society of America

Citation
N. Noginova, N. Kukhtarev, M. A. Noginov, Bo Su Chen, H. J. Caulfield, and P. Venkateswarlu, "Holographic-current study in laser and photorefractive crystals," J. Opt. Soc. Am. B 13, 2622-2629 (1996)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-13-11-2622

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