Journal of Experimental and Theoretical Physics

The susceptibility spectrum and parametric generation in atomic vapors in a resonant light field

Iosif S. Zeilikovich, S. A. Pulkin, Л. С. Гайда, Volodymyr Komar

Published Dec 1, 1988• 1 citation

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Journal of Experimental and Theoretical Physics

The susceptibility spectrum and parametric generation in atomic vapors in a resonant light field

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Published Dec 1, 1988• 1 citation

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Parametric Frequency Conversion of Resonance Radiation in Optically Pumped Rb87 Vapor

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This paper reports an investigation of parametric frequency conversion in a vapor of ${\mathrm{Rb}}^{87}$ atoms in which nearly resonant optical waves are coupled with microwaves at the ground-state hyperfine-structure (hfs) frequency of ${\mathrm{Rb}}^{87}$ by the nonlinear susceptibilities of ${\mathrm{Rb}}^{87}$ vapor. These nonlinear susceptibilities are greatly enhanced by optical pumping of the ground-state hfs levels of ${\mathrm{Rb}}^{87}$ and by using nearly resonant light. The frequency-conversion process generates optical sideband waves which are separated in frequency from the carrier light waves by the ground-state hfs frequency of ${\mathrm{Rb}}^{87}$ (6.835 GHz). These sidebands have been directly observed in the spectral profiles of ${\mathrm{Rb}}^{85}$ resonance light which had passed through ${\mathrm{Rb}}^{87}$ vapor. The conversion efficiency of power from the carrier waves to the sideband waves in a 45-cm length of vapor was greater than 1%. The observed behavior of the sidebands is in excellent qualitative agreement with the predictions of a semiclassical theory.This paper reports an investigation of parametric frequency conversion in a vapor of ${\mathrm{Rb}}^{87}$ atoms in which nearly resonant optical waves are coupled with microwaves at the ground-state hyperfine-structure (hfs) frequency of ${\mathrm{Rb}}^{87}$ by the nonlinear susceptibilities of ${\mathrm{Rb}}^{87}$ vapor. These nonlinear susceptibilities are greatly enhanced by optical pumping of the ground-state hfs levels of ${\mathrm{Rb}}^{87}$ and by using nearly resonant light. The frequency-conversion process generates optical sideband waves which are separated in frequency from the carrier light waves by the ground-state hfs frequency of ${\mathrm{Rb}}^{87}$ (6.835 GHz). These sidebands have been directly observed in the spectral profiles of ${\mathrm{Rb}}^{85}$ resonance light which had passed through ${\mathrm{Rb}}^{87}$ vapor. The conversion efficiency of power from the carrier waves to the sideband waves in a 45-cm length of vapor was greater than 1%. The observed behavior of the sidebands is in excellent qualitative agreement with the predictions of a semiclassical theory.

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This paper reports an investigation of parametric frequency conversion in a vapor of

{\mathrm{Rb}}^{87}

atoms in which nearly resonant optical waves are coupled with microwaves at the ground-state hyperfine-structure (hfs) frequency of

{\mathrm{Rb}}^{87}

by the nonlinear susceptibilities of

{\mathrm{Rb}}^{87}

vapor. These nonlinear susceptibilities are greatly enhanced by optical pumping of the ground-state hfs levels of

{\mathrm{Rb}}^{87}

and by using nearly resonant light. The frequency-conversion process generates optical sideband waves which are separated in frequency from the carrier light waves by the ground-state hfs frequency of

{\mathrm{Rb}}^{87}

(6.835 GHz). These sidebands have been directly observed in the spectral profiles of

{\mathrm{Rb}}^{85}

resonance light which had passed through

{\mathrm{Rb}}^{87}

vapor. The conversion efficiency of power from the carrier waves to the sideband waves in a 45-cm length of vapor was greater than 1%. The observed behavior of the sidebands is in excellent qualitative agreement with the predictions of a semiclassical theory.