arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1902.06706quant-phphysics.atom-phphysics.optics
收藏

磁场控制传输及暗原子光缀饰态超窄超辐射激光

Magnetic Field-controlled Transmission and Ultra-narrow Superradiant Lasing by Dark Atom-light Dressed States

Yuan Zhang, Chong Xin Shan, Klaus Mølmer

摘要:

超冷锶-88原子的光晶格钟系统已被用来演示超辐射激光和磁场控制的光传输。我们用三能级原子与单腔模耦合的严格模型从理论上解释了这些现象。我们确定了一类暗原子光修饰态,这是由于在磁场的存在下与亮修饰态混合而变得可访问的。我们预测,这些状态下,适度的非相干泵浦,导致激光的线宽只有几十赫兹,数量级小于腔线宽和原子的非相干衰减和泵浦速率。

英文摘要:

Optical lattice clock systems with ultra-cold strontium-88 atoms have been used to demonstrate superradiant lasing and magnetic field-controlled optical transmission. We explain these phenomena theoretically with a rigorous model for three-level atoms coupled to a single cavity mode. We identify a class of dark atom-light dressed states which become accessible due to mixing with bright dressed states in the presence of a magnetic field. We predict that these states, under moderate incoherent pumping, lead to lasing with a linewidth of only tens of Hz, orders of magnitude smaller than the cavity linewidth and the atomic incoherent decay and pumping rates.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑