Slow light produced by far-off-resonance Raman scattering
Slow light produced by far-off-resonance Raman scattering
复制标题
DOI：
10.1109/jstqe.2002.807969
复制
发表时间：
2003-04
影响因子：
4.9
通讯作者：
F. Kien;H. Liang;K. Hakuta
中科院分区：
文献类型：
--
作者：
F. Kien;H. Liang;K. Hakuta
本文综述了在强耦合场驱动下，在远离共振的拉曼介质中产生慢光的理论和实验研究。当材料色散可以忽略时，两个耦合边带的传播可以用两个以不同群速度独立传播的正常模式来描述，一个以真空光速传播，一个以降低的速度传播。他们使用固体氢作为拉曼介质来演示慢光的产生。数值计算和实验结果表明，由于固体氢的高密度、窄的拉曼宽度和小的双光子失谐量，固体氢的远共振拉曼散射可以使Stokes和反Stokes场的脉冲峰值速度减慢到c/10000量级.这种速度降低通过正常模式之间的拍频影响斯托克斯和反斯托克斯场的振幅。在边带场的强度时间分布中观察到的双峰结构是共同传播的简正模分裂的特征。
The authors survey the theoretical and experimental aspects of generation of slow light in a far-off-resonance Raman medium driven by a strong coupling field. When material dispersion is negligible, the propagation of two coupled sidebands can be described in terms of two normal modes that propagate independently at different group velocities, one at the vacuum speed of light and one at a reduced velocity. They use solid hydrogen as a Raman medium to demonstrate the generation of slow light. The numerical calculations and experimental observations show that, due to high density, narrow Raman width, and small two-photon detuning, far-off-resonance Raman scattering in solid hydrogen can slow down the pulse-peak velocity of the Stokes and anti-Stokes fields to the order of c/10000. This velocity reduction affects the amplitudes of the Stokes and anti-Stokes fields via the beating between the normal modes. The double-peak structure observed in the intensity temporal profiles of the sideband fields is a signature of the splitting of the copropagating normal modes.