受激拉曼散射的时空动态：种群和双光子失谐的影响

Q2 Physics and Astronomy

Physics Open Pub Date : 2024-04-02 DOI:10.1016/j.physo.2024.100211

C.H. Raymond Ooi, Yuzhao Huang, Jong Wey Lee

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引用次数: 0

摘要

建立了受激拉曼散射的量子理论，该理论考虑到了泵浦激光脉冲、双光子失谐和原子群的时间依赖性，允许对拉曼记忆进行一般的瞬态和空间传播研究。在电场包络和集体原子算子变化缓慢的绝热条件下，对集体原子算子的海森堡-朗格文和麦克斯韦方程进行了分析求解。得到了斯托克斯/反斯托克斯信号电场算子的解析解。针对不同的双光子调谐和初始种群，对量子信号场的时空强度进行了数值和解析研究。

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Spatial-temporal dynamics of stimulated Raman scattering: Effects of populations and two-photon detuning

A quantum theory of stimulated Raman scattering is established that takes into account the time-dependence of pump laser pulse, two-photon detuning and atomic populations, allowing the general transient and spatial propagation study of Raman memory. Heisenberg–Langevin and Maxwell equations for the collective atomic operators are solved analytically under adiabatic condition, where the electric field envelopes and the collective atomic operators vary slowly. The analytical solution of Stokes/anti-Stokes signal electric field operator is obtained. The spatial–temporal intensity of quantum signal field is studied numerically and analytically for different two-photon detunings and initial populations.

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来源期刊

Physics Open Physics and Astronomy-Physics and Astronomy (all)

CiteScore

3.20

自引率

0.00%

发文量

审稿时长

9 weeks