Ultranarrow Spectral Lines via Quantum Interference.
Ultranarrow Spectral Lines via Quantum Interference.
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DOI：
10.1103/physrevlett.77.3995
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发表时间：
1996-11
影响因子：
8.6
通讯作者：
P. Zhou;S. Swain
中科院分区：
文献类型：
--
作者：
P. Zhou;S. Swain
研究表明，当原子的偶极矩近似平行时，在单模激光场激发下，V型三能级原子的共振荧光中可以产生宽度比自然宽度小20个数量级的超尖锐谱线.激发态双峰的分裂越小，谱线越窄。这种效应是由于两个跃迁路径之间的量子干涉造成的。美国物理学会（American Physical Society）
We show that ultrasharp spectral lines, with widths 2orders of magnitude below the natural width, may be produced in the resonance fluorescence of a V-type three-level atom excited by a single-mode laser field when the dipole moments are nearly parallel. The smaller the splitting of the excited doublet, the narrower the line. This effect is due to quantum interference between the two transition pathways. {copyright} {ital 1996 The American Physical Society.}