Observation of a two-photon gain feature in the strong-probe absorption spectrum of driven two-level atoms.
Observation of a two-photon gain feature in the strong-probe absorption spectrum of driven two-level atoms.
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DOI：
10.1103/physrevlett.65.1200
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发表时间：
1990-09
影响因子：
8.6
通讯作者：
Zhu;Wu;Morin;Mossberg
中科院分区：
文献类型：
--
作者：
Zhu;Wu;Morin;Mossberg
在强近共振光场驱动下的钡原子系综的吸收光谱中，观察到了与连续波双光子光学增益有关的特征。在修饰原子的图像中，观察到的增益归因于具有接近共振的中间态的反转双光子跃迁。利用这种增益的连续波双光子激光器似乎是可行的。
A feature associated with continuous-wave two-photon optical gain has been observed in the absorption spectrum of an ensemble of barium atoms driven by a strong near-resonant optical field. In the dressed-atom picture, the observed gain is attributable to inverted two-photon transitions with nearly resonant intermediate states. A cw optical two-photon laser utilizing this gain appears feasible.