OSA's Digital Library

Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 15, Iss. 3 — Mar. 1, 1998
  • pp: 989–995

Z-scan-based investigations of photorefractive self-focusing in KNbO3 crystals

Roland Ryf, Andreas Lötscher, Christian Bosshard, Marko Zgonik, and Peter Günter  »View Author Affiliations


JOSA B, Vol. 15, Issue 3, pp. 989-995 (1998)
http://dx.doi.org/10.1364/JOSAB.15.000989


View Full Text Article

Acrobat PDF (237 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We present experimental and theoretical results of photorefractive one-dimensional self-focusing in an Fe-doped KNbO<sub>3</sub> crystal. The self-focusing is investigated by Z-scan experiments with and without an applied electric field. We observe the strongest focusing effect for a ratio I⁁/I<sub>D</sub>≈6 of the beam peak intensity to the so-called dark intensity (the intensity at which photoconductivity is equal to the conductivity in the dark). The good agreement between the presented theory and experiment in the Z-scan technique allows the precise determination of dark intensity, the photovoltaic field, and the electric field inside the crystal.

© 1998 Optical Society of America

OCIS Codes
(160.5320) Materials : Photorefractive materials
(190.5330) Nonlinear optics : Photorefractive optics
(260.5950) Physical optics : Self-focusing

Citation
Roland Ryf, Andreas Lötscher, Christian Bosshard, Marko Zgonik, and Peter Günter, "Z-scan-based investigations of photorefractive self-focusing in KNbO3 crystals," J. Opt. Soc. Am. B 15, 989-995 (1998)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-15-3-989

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
Log in to access OSA Member Subscription

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
Log in to access OSA Member Subscription

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
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited