Measurements of the nonlinear refractive index of AgGaSe₂, GaSe, and ZnSe at 10 µm

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.</jats:p

Measurements of the nonlinear refractive index of AgGaSe₂, GaSe, and ZnSe at 10 µm: erratum

Typographical errors in our recently published paper [J. Opt. Soc. Am. B 37, 2076 (2020)JOBPDE0740-322410.1364/JOSAB.395844] are corrected.</jats:p