Lasing in the superradiant crossover regime
Lasing in the superradiant crossover regime
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超辐射交叉区域中的激光发射
DOI：
10.1103/physreva.98.063837
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发表时间：
2018
影响因子：
2.9
通讯作者：
K. Mølmer
中科院分区：
文献类型：
--
作者：
Kamanasish Debnath;Y. Zhang;K. Mølmer
通过使用捕获在光学腔内的光学晶格中的超冷碱土原子，可以产生一种利用光和原子相干性的新型激光器。不同的激光发射方式，包括超辐射、超辐射和传统激光，通过存储在原子和腔模式中的相对相干性来区分。我们分析了超辐射激光体制的两个不同实验可实现区域的物理现象。我们的计算证实了锶 87 原子的双禁时钟跃迁 ${}^3 P_0 \to {}^1 S_0$ 的超辐射激光的窄线宽。在锶88原子偶极禁止跃迁${}^3 P_1 \to {}^1 S_0$的强烈驱动下，由于腔场的相干激发，超辐射线宽进一步变窄。
A new class of laser, which harnesses coherence in both light and atoms, is possible with the use of ultra-cold alkaline earth atoms trapped in an optical lattice inside an optical cavity. Different lasing regimes, including superradiance, superradiant and conventional lasing, are distinguished by the relative coherence stored in the atoms and in the cavity mode. We analyze the physics in two different experimentally achievable regions of the superradiant lasing regime. Our calculations confirm the narrow linewidth of superradiant lasing for the doubly forbidden clock transition ${}^3 P_0 \to {}^1 S_0$ of strontium-87 atoms. Under strong driving of the dipole-forbidden transition ${}^3 P_1 \to {}^1 S_0$ of strontium-88 atoms the superradiant linewidth narrows further due to the coherent excitation of the cavity field.
影响因子：
2.9
作者：
Alexander Roth;K. Hammerer
通讯作者：
Alexander Roth;K. Hammerer