论文标题
连续波激发rubidium蒸气中产生的频率上转换场的尖峰动力学
Spiking dynamics of frequency up-converted field generated in continuous-wave excited rubidium vapours
论文作者
论文摘要
我们报告了在6p3/2-5s1/2在Rb蒸气两光片中生成的420 nm上的频率上流发射的峰值动力学，激光在780和776 nm处，激光光激发了5D5/2级。峰值持续时间小于与连续和脉冲泵辐射相互作用涉及的任何激发水平的自然寿命。在420 nm处的尖峰归因于在5d5/2-6p3/2过渡的种群中产生的5.23μm方向发射的时间特性。讨论了峰值制度与合作效应之间的联系。我们建议观察到的随机行为是由于合作效应的量子力学性质，而不是对应用激光场的随机波动。
We report on spiking dynamics of frequency up-converted emission at 420 nm generated on the 6P3/2-5S1/2 transition in Rb vapour two-photon excited to the 5D5/2 level with laser light at 780 and 776 nm. The spike duration is less than the natural lifetime of any excited level involved in the interaction with both continuous and pulsed pump radiation. The spikes at 420 nm are attributed to temporal properties of the directional emission at 5.23 μm generated on the population inverted 5D5/2-6P3/2 transition. A link between the spiking regime and cooperative effects is discussed. We suggest that the observed stochastic behaviour is due to the quantum-mechanical nature of the cooperative effects rather than random fluctuation of the applied laser fields.
