Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Temporal memory effects in photorefractive two-beam coupling: a study comparing n-doped and p-doped BaTiO3 at 514 nm and 830 nm

Not Accessible

Your library or personal account may give you access

Abstract

The photorefractive gain and time response of n-doped and p-doped BaTiO3 were compared in the visible, λ =514 nm, and in the infrared, λ=830 nm. Two-beam coupling experiments were conducted for beam ratios between 3600:1, 5000:1, and 8000:1. In both infrared and visible it was observed that the measured gains were higher for the p-BaTiO3 by an order of magnitude or more. When the gain was high, a temporal memory effect was observed, suggesting that the time dependence of the space-charge field is determined by the history of the modulation depth. This effect is shown to be consistent with the Kukhtarev equations for a single carrier. Low-gain behavior was observed at all interaction angles for both crystals in the IR. In the visible the high-gain temporal memory effect is reported for the p-BaTiO3.

© 1998 Optical Society of America

Full Article  |  PDF Article
More Like This
High beam-coupling gain and deep- and shallow-trap effects in cobalt-doped barium titanate, BaTiO3:Co

M. H. Garrett, J. Y. Chang, H. P. Jenssen, and C. Warde
J. Opt. Soc. Am. B 9(8) 1407-1415 (1992)

Rigorous coupled-wave analysis of photorefractive reflection gratings

John M. Jarem and Partha P. Banerjee
J. Opt. Soc. Am. B 15(7) 2099-2106 (1998)

Theoretical study of Fe doping and oxidation–reduction influence on the photorefractive effect in BaTiO3

A. Lahlafi, G. Godefroy, G. Ormancey, and P. Jullien
J. Opt. Soc. Am. B 10(7) 1276-1286 (1993)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (12)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (4)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (14)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved