Optimized geometries for cooperative photon storage in an impurity coupled to a two-dimensional atomic array

Optimized geometries for cooperative photon storage in an impurity coupled to a two-dimensional atomic array
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与二维原子阵列耦合的杂质中合作光子存储的优化几何结构

DOI:
10.1103/physreva.106.053706
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发表时间:
2022
期刊:
影响因子:
2.9
通讯作者:
Yelin, Susanne F.
Yelin, Susanne F.
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Buckley-Bonanno, Samuel;Ostermann, Stefan;Rubies-Bigorda, Oriol;Patti, Taylor L.;Yelin, Susanne F.

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二维有序原子阵列的集体模可以改变嵌入原子杂质的辐射环境。我们分析的晶格几何形状上的杂质的发射线宽的作用,通过比较所有非中心布拉维晶格和一个额外的蜂窝晶格获得的有效杂质衰减率。我们表明,晶格几何形状起着至关重要的作用,在确定有效的衰变率的杂质。特别地,我们发现最小有效衰变率出现在杂质最近邻个数最多且最近邻间相异距离最小的晶格中。我们进一步表明,在间隙和替代的杂质之间的选择,前者总是赢得表现出较低的衰减率和较长的光子存储。对于填隙位置,我们确定了晶格平面中的最佳杂质位置,它不一定位于晶格元胞的中心。
The collective modes of two-dimensional ordered atomic arrays can modify the radiative environment of embedded atomic impurities. We analyze the role of the lattice geometry on the impurity's emission linewidth by comparing the effective impurity decay rate obtained for all noncentered Bravais lattices and an additional honeycomb lattice. We demonstrate that the lattice geometry plays a crucial role in determining the effective decay rate for the impurity. In particular, we find that the minimal effective decay rate appears in lattices where the number of the impurity's nearest neighbors is maximalandthe number of distinct distances among nearest neighbors is minimal. We further show that, in the choice between interstitial and substitutional placement of the impurity, the former always wins by exhibiting a lower decay rate and longer photon storage. For interstitial placements, we determine the optimal impurity position in the lattice plane, which isnotnecessarily found in the center of the lattice plaquette.
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期刊: Physical Review A
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