Measurement of the nonlinear refractive index of air constituents at mid-infrared wavelengths

S. Zahedpour, J. K. Wahlstrand, H. M. Milchberg

We measure the nonlinear refractive index coefficients in N${}_2$, O${}_2$ and Ar from visible through mid-infrared wavelengths (λ= 0.4 - 2.4 μm). The wavelengths investigated correspo…