EPJ Web of Conferences (Jan 2023)

First measurements of second-order frequency conversion phase-matching conditions in the new CTAS crystal

  • Remark Théodore,
  • Segonds Patricia,
  • Debray Jérôme,
  • Jegouso David,
  • Víllora Encarnación G.,
  • Shimamura Kiyoshi,
  • Boulanger Benoît

DOI
https://doi.org/10.1051/epjconf/202328705020
Journal volume & issue
Vol. 287
p. 05020

Abstract

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We report that Ca3TaAl3Si2O14 is a positive uniaxial crystal and provides second-order frequency conversion. Indeed, we performed direct measurements of phase-matching conditions for second-harmonic generation and sum-frequency generation up to 3.5 µm. The simultaneous fitting of recorded data provided the Sellmeier equations of the two principal refractive indices and the magnitude of the nonlinear coefficient.