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arXiv · 1402.2276

Measurement of the Kerr nonlinear refractive index of Cs vapor

Michelle O. Araújo·Hugo L. D. de S. Cavalcante·Marcos Oriá·Martine Chevrollier·Thierry Passerat de Silans·Romeu Castro·Danieverton Moretti
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Abstract

Atomic vapors are systems well suited for nonlinear optics studies but very few direct measurements of their nonlinear refractive index have been reported. Here we use the z-scan technique to measure the Kerr coefficient, $n_2$, for a Cs vapor. Our results are analyzed through a four-level model, and we show that coherence between excited levels as well as cross-population effects contribute to the Kerr-nonlinearity.

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Michelle O. Araújo, Hugo L. D. de S. Cavalcante, Marcos Oriá, Martine Chevrollier, Thierry Passerat de Silans, Romeu Castro, Danieverton Moretti. 2014-02-10. Measurement of the Kerr nonlinear refractive index of Cs vapor. https://doi.org/10.1103/physreva.88.063818

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