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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Editor: G. I. Stegeman
  • Vol. 23, Iss. 2 — Feb. 1, 2006
  • pp: 276–281

Electro-optical properties of near-stoichiometric and congruent lithium tantalate at ultraviolet wavelengths

Flurin Juvalta, Mojca Jazbinšek, Peter Günter, and Kenji Kitamura  »View Author Affiliations

JOSA B, Vol. 23, Issue 2, pp. 276-281 (2006)

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We measured the unclamped electro-optic coefficients r 13 and r 33 of near-stoichiometric and congruent lithium tantalate ( Li Ta O 3 ) from λ = 633 nm down to the absorption edge at 275 nm . Electro-optical coefficients up to r 33 = 52 ± 1 pm V have been determined at λ = 275 nm . The reduced half-wave voltage at 275 nm is v π = 300 ± 10 V for r 33 and v π = 560 ± 20 V for the configuration employing r c = r 33 ( n o n e ) 3 r 13 . We propose a two-oscillator polarization potential model that well describes our data in the UV. In the investigated wavelength range the values for stoichiometric and congruent Li Ta O 3 differ by less than 3%, which is below the accuracy of our measurements. In addition, the refractive indices in the UV were measured, and more precise Sellmeier parameters for the UV and visible were determined based on the previous and new refractive-index data.

© 2006 Optical Society of America

OCIS Codes
(120.4530) Instrumentation, measurement, and metrology : Optical constants
(160.2100) Materials : Electro-optical materials
(160.2260) Materials : Ferroelectrics
(260.7190) Physical optics : Ultraviolet

ToC Category:

Original Manuscript: June 15, 2005
Manuscript Accepted: September 10, 2005

Flurin Juvalta, Mojca Jazbinsek, Peter Günter, and Kenji Kitamura, "Electro-optical properties of near-stoichiometric and congruent lithium tantalate at ultraviolet wavelengths," J. Opt. Soc. Am. B 23, 276-281 (2006)

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