Abstract

A fully nonlinear frequency response of a moving grating in bismuth silicon oxide, including the effects of an applied electric field, is modeled by solution of the time-dependent Kukhtarev equations for photorefractive materials. The numerical results are used to define fully the nonlinear response function Fm=a-11-exp-am, where m is the modulation index in the intensity pattern, to yield the unknown quantity a over a broad range of detuning frequencies f. For low f, the response is superlinear with a<0, and for relatively large f it is sublinear with a>0. In the midrange we predict, for the first time to our knowledge, a characteristic frequency fl at which a=0 and the response is linear, that is, Fmm, despite the presence of nonlinearly generated higher harmonics of the fundamental grating wave number. In view of this linear behavior, writing a hologram at the linear-response frequency fl might permit a more faithful reproduction of an object than that which is possible by writing at the frequency of maximum response at the resonance.

© 1999 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Recording and erasure kinetics in photorefractive materials at large modulation depths

E. Serrano, Vicente López, M. Carrascosa, and F. Agulló-López
J. Opt. Soc. Am. B 11(4) 670-675 (1994)

Space-charge field in photorefractive materials at large modulation

L. B. Au and L. Solymar
Opt. Lett. 13(8) 660-662 (1988)

Comparison between continuous-wave and pulsed photorefraction in barium titanate

N. Barry, L. Duffault, R. Troth, R. Ramos-Garcia, and M. J. Damzen
J. Opt. Soc. Am. B 11(9) 1758-1763 (1994)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

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

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 OSA member, or as an authorized user of your institution.

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

Figures (2)

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

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

Equations (4)

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

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

Metrics

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

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