Quenching of spontaneous emission via quantum interference
Quenching of spontaneous emission via quantum interference
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DOI：
10.1103/physreva.55.4454
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发表时间：
1997-06
影响因子：
2.9
通讯作者：
Hwang Lee;P. Polynkin;M. Scully;Shi-Yao Zhu
中科院分区：
文献类型：
--
作者：
Hwang Lee;P. Polynkin;M. Scully;Shi-Yao Zhu
考虑了一个由相干场驱动的四能级原子。我们证明在一定条件下，自发辐射完全猝灭是可能的。因此，可以使用非常弱的非相干泵浦来产生某些特定原子跃迁的居数反转。我们使用裸态和盛装态来研究这种效应的物理性质。提出的方案可能是有用的，原则上，产生高频和/或高功率激光。
A four-level atom, driven by a coherent field, is considered. We show that under certain conditions complete quenching of spontaneous emission is possible. Hence the population inversion on some specific atomic transitions can be created using a very weak incoherent pumping. We investigate the physics of the effect using bare and dressed states. The proposed scheme may be useful, in principle, for generation of high-frequency and/or high power laser light.