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Light-Wave Mixing and Scattering with Quantum Gases



Lu Deng, Chengjie Zhu, Edward W. Hagley


We present a general theoretical framework on light-wave mixing and scattering in quantum gases. We show that all such processes that originate from elementary excitations are stimulated Raman or hyper-Raman in nature. In the forward direction, the third-harmic generation originated from elementary excitation is strongly suppressed but a contribution independent of atomic centerof- motion grows as in a normal gas. In the backward direction, the third harmoni generation from electronic excitation is strongly suppressed because of the large optical wave phase mismatch. However, a highly efficient light-wave mixing process originating from elementary excitation occurs, resulting in ultra-slow light wave propagation with stimulated Raman or hyper-Raman gain, and highly efficient collective atomic recoil motion.
Physical Review Letters


nonlinear optics, light wave mixing, Bose-Einstein condensation


Deng, L. , Zhu, C. and Hagley, E. (2013), Light-Wave Mixing and Scattering with Quantum Gases, Physical Review Letters, [online], (Accessed June 24, 2024)


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Created May 21, 2013, Updated November 10, 2018