Measurements of the nonlinear refractive index of AgGaSe2, GaSe, and ZnSe at 10 µm
Abstract
We measure the four-wave mixing efficiency of dual-frequency, 300 ns, 10 µm C O 2 laser pulses to determine the effective nonlinear refractive index of the quadratic nonlinear crystals GaSe, A g G a S e 2 , and ZnSe relative to GaAs. The effective nonlinear refractive index of GaSe and A g G a S e 2 does not depend on the phase-matching conditions for second-harmonic and sum-frequency generation. This suggests that these measurements are representative of the intrinsic Kerr index and usable for infrared applications.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jun 23, 2020
- Source ID
- 10.1364/josab.395844
Entities
People
- C. Joshi
- Daniel Matteo
- I. Ben-zvi
- J. J. Pigeon
- Sergei Tochitsky
Organizations
- Office of Naval Research