Lin H B, Eversole J D, Campillo A J
Opt Lett. 1992 Jun 1;17(11):828-30. doi: 10.1364/ol.17.000828.
Continuous-wave stimulated Raman scattering was observed in 11-13-microm-diameter benzene and toluene microdroplets at pump intensities as low as 8 and 24 kW/cm(2), respectively. Low thresholds were achieved by exploiting simultaneous pump and Stokes wave resonance in the droplets and Raman gains that were cavity QED enhanced ~50 times with respect to bulk liquid values. Based on a photon-state conservation argument, the cavity gain enhancement factor may be approximated by the ratio of the spectral spacing between resonant modes of the same order to that of the homogeneous Raman linewidth. This relation appears to be consistent with the relative experimental behavior of benzene, ethanol, and toluene.
在直径为11 - 13微米的苯和甲苯微滴中，分别在低至8千瓦/平方厘米和24千瓦/平方厘米的泵浦强度下观测到了连续波受激拉曼散射。通过利用微滴中泵浦波和斯托克斯波的同时共振以及拉曼增益实现了低阈值，其中拉曼增益在腔量子电动力学作用下相对于本体液体值增强了约50倍。基于光子态守恒的观点，腔增益增强因子可以用同一阶共振模式之间的光谱间距与均匀拉曼线宽的光谱间距之比来近似。这种关系似乎与苯、乙醇和甲苯的相对实验行为一致。
