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arXiv:1207.3862 · New Journal of Physics

Bichromatic field generation from double-four-wave mixing in a double-electromagnetically induced transparency system

Yang Liu, Jinghui Wu, Dong-Sheng Ding, Bao-Sen Shi, Guang‐Can Guo

Published Jul 24, 2012• 13 citations

Abstract

We demonstrate double electromagnetically induced transparency (double-EIT) and double four-wave mixing (double-FWM) based on a new scheme of non-degenerate four-wave mixing (FWM) involving five levels of a cold 85 Rb atomic ensemble, in which the double-EIT windows are used to transmit the probe field and enhance the third-order nonlinear susceptibility. The phase-matching conditions for both four-wave mixings can be satisfied simultaneously. The frequency of one component of the generated bichromatic field is less than the other by ground-state hyperfine splitting (3 GHz). This specially designed experimental scheme for simultaneously generating different nonlinear wave-mixing processes is expected to find applications in quantum information processing and cross-phase modulation. Our results agree well with the theoretical simulation.

DOI: 10.1088/1367-2630/14/7/073047

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