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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry M. Van Driel
  • Vol. 24, Iss. 7 — Jul. 1, 2007
  • pp: 1535–1541

Tailoring of infrared photorefractive properties of Sn 2 P 2 S 6 crystals by Te and Sb doping

Tobias Bach, Mojca Jazbinšek, Germano Montemezzani, Peter Günter, Alexander A. Grabar, and Yulian M. Vysochanskii  »View Author Affiliations


JOSA B, Vol. 24, Issue 7, pp. 1535-1541 (2007)
http://dx.doi.org/10.1364/JOSAB.24.001535


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Abstract

The photorefractive properties of Sn 2 P 2 S 6 crystals doped with Te and Sb in the near-infrared wavelength range up to 1064 nm are reported. The main photorefractive parameters, i.e., two-wave mixing gain, effective electro-optic coefficient, diffusion length, concentration of traps, and response time, are compared with conventional nominally pure Sn 2 P 2 S 6 . Te-doped Sn 2 P 2 S 6 shows the fastest response with the smallest decrease of the photorefractive efficiency with increasing wavelength in the near infrared. Sb doping, on the other hand, inhibits photorefraction in the near infrared. Sn 2 P 2 S 6 : Te and Sn 2 P 2 S 6 : Sb crystals both show a high two-wave mixing gain Γ at 633 nm , and 10 and 20 cm 1 . Te-doped Sn 2 P 2 S 6 shows a photorefractive gain of 4.5 cm 1 at 1064 nm . Response times at 1064 nm of 20 ms have been measured for the intensity 6 W cm 2 , which is 2 orders of magnitude shorter than in Rh-doped Ba Ti O 3 .

© 2007 Optical Society of America

OCIS Codes
(160.5320) Materials : Photorefractive materials
(190.7070) Nonlinear optics : Two-wave mixing

ToC Category:
Materials

History
Original Manuscript: February 8, 2007
Manuscript Accepted: March 14, 2007
Published: June 15, 2007

Citation
Tobias Bach, Mojca Jazbinšek, Germano Montemezzani, Peter Günter, Alexander A. Grabar, and Yulian M. Vysochanskii, "Tailoring of infrared photorefractive properties of Sn2P2S6 crystals by Te and Sb doping," J. Opt. Soc. Am. B 24, 1535-1541 (2007)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-24-7-1535

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