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Two-photon resonant four-wave mixing in atomic sodium vapour

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Abstract

Using the 4d- and 5s-states of sodium, two different types of two-photon resonance enhanced four-wave mixing have been observed. In the first type 2v L =v IR +v pIR radiation near 2.34 μm and UV radiation near 320 nm has been detected. In the second typev P −v S =v L +v IR the UV radiation produced in the first parametric process acted as a pump for stimulated electronic Raman scattering via the 4p-state of sodium. Resonantly enhanced by the two-photon transition 3s–4s, radiation near 1.18 μm was produced in this scheme. The realisation of a tunable coherent IR source based on these four-wave mixing processes is discussed.

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  1. Fachbereich 7, Physik, Universität Essen, Gesamthochschule, D-4300, Essen 1, Fed. Rep. Germany

    W. Hartig

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  1. W. Hartig
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Hartig, W. Two-photon resonant four-wave mixing in atomic sodium vapour. Appl. Phys. 15, 427–432 (1978). https://doi.org/10.1007/BF00886163

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  • DOI: https://doi.org/10.1007/BF00886163

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