Coupling of atomic quadrupole transitions with resonant surface plasmons
Coupling of atomic quadrupole transitions with resonant surface plasmons
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原子四极跃迁与共振表面等离子体的耦合
DOI：
10.1103/physreva.99.063801
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发表时间：
2018
影响因子：
2.9
通讯作者：
D. Wilkowski
中科院分区：
文献类型：
--
作者：
E. A. Chan;S. Aljunid;G. Adamo;N. Zheludev;M. Ducloy;D. Wilkowski
我们报道了原子蒸气中的电四极跃迁与纳米结构金属超材料中的等离子体激发的耦合。铯原子气体中685 nm处的四极跃迁是光泵浦的，而诱导的基态布居耗尽是通过调谐到852 nm处的强电偶极跃迁上的光来探测的。我们使用选择反射来解析铯原子的无多普勒超精细结构。我们观察到在超材料的存在下反射谱的强烈修改，并讨论了表面等离子体激元的空间变化对四极耦合的作用。
We report on the coupling of an electric quadrupole transition in atomic vapor with plasmonic excitation in a nanostructured metallic metamaterial. The quadrupole transition at 685 nm in the gas of cesium atoms is optically pumped, while the induced ground-state population depletion is probed with light tuned on the strong electric dipole transition at 852 nm. We use selective reflection to resolve the Doppler-free hyperfine structure of cesium atoms. We observe a strong modification of the reflection spectra at the presence of metamaterial and discuss the role of the spatial variation of the surface plasmon polariton on the quadrupole coupling.
影响因子：
1.7
作者：
K. Deguchi;M. Okuda;A. Iwamae;Hiroaki Nakamura;K. Sawada;M. Hasuo
通讯作者：
K. Deguchi;M. Okuda;A. Iwamae;Hiroaki Nakamura;K. Sawada;M. Hasuo