Measurement of the third order nonlinear susceptibility of paratellurite single crystal using multiplex CARS
Abstract
We report the extraction of the real part of the third order nonlinear susceptibility for a c-cut paratellurite (TeO2 - α) single crystal using the nonresonant contribution of the multiplex coherent anti-Stokes Raman scattering (M-CARS) signal. Using fused silica and SF57 as nonlinear reference materials, we derive the absolute value of the real part of the electronic third order susceptibility and we evidence the in-plane modulation of the nonlinear refractive index. These results are in total agreement with those recently obtained by the z-scan method.
- Publication:
-
AIP Advances
- Pub Date:
- October 2019
- DOI:
- 10.1063/1.5113478
- Bibcode:
- 2019AIPA....9j5301R