J. Pigeon, D. Tovey, S. Tochitsky, G. Louwrens, I. Ben-Zvi, C. Joshi, D. Martyshkin, V. Fedorov, K. Karki, S. Mirov
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Measurements of resonant Kerr self-focusing and self-defocusing of tunable, 4.3 µm radiation in CO2 gas
We report detailed measurements of resonant self-focusing and self-defocusing of a continuously tunable Fe:ZnSe laser operating within the 4P-branch of the CO2 molecule. We determine the dispersion of this resonant nonlinearity near a rovibrational transition.