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Optics Letters

Optics Letters


  • Vol. 19, Iss. 17 — Sep. 1, 1994
  • pp: 1293–1295

Light-induced absorption in photorefractive strontium barium niobate

Sergei Orlov, Mordechai Segev, Amnon Yariv, and Ratnakar R. Neurgaonkar  »View Author Affiliations

Optics Letters, Vol. 19, Issue 17, pp. 1293-1295 (1994)

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Sr0.59Ba0.41Nb2O6 and Sr0.75Ba0.25 Nb2O6 exhibit an intensity-dependent absorption in the visible spectral range. We perform pump (green)–probe (red) measurements and find variation as high as 0.45 cm−1 in the absorption coefficient, which depends significantly on the polarization of the probe light beam. Our results indicate a nonexponential dark decay time of the induced absorption and suggest that the trapping potential of the shallow traps varies significantly from one trap to another (multiple isolated shallow traps).

© 1994 Optical Society of America

Original Manuscript: February 10, 1994
Published: September 1, 1994

Sergei Orlov, Mordechai Segev, Amnon Yariv, and Ratnakar R. Neurgaonkar, "Light-induced absorption in photorefractive strontium barium niobate," Opt. Lett. 19, 1293-1295 (1994)

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