Photon-pair production at the nanoscale with hybrid nonlinear/plasmonic antennas

被引:1
|
作者
Laurent, Guillaume [1 ]
Mathew, Sandy [1 ]
Chauvet, Nicolas [1 ]
Nogues, Gilles [1 ]
Drezet, Aurglien [1 ]
Bachelier, Guillaume [1 ]
机构
[1] Univ Grenoble Alpes, Inst Neel, CNRS, F-38000 Grenoble, France
关键词
ENTANGLED PHOTONS; GENERATION;
D O I
10.1364/JOSAB.492038
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Reducing a nonlinear photon pair source to the nanoscale entails drastic reduction in efficiency and thus requires better tools for its evaluation and optimization. In this context, we develop a formalism for the investigation of spontaneous parametric downconversion in hybrid plasmonic structures that combine plasmonic resonances and intrinsic nonlinearity of a nonlinear medium. Combining quantum and numerical approaches, we quantitatively evaluate photon pair correlation for a realistic experimental configuration. We thereby show that hybrid structures embedding a nanocrystal and plasmonic antennas allow for a 105-fold increase in pair production rate in com-parison with a single nanocrystal, thus displaying an efficiency close to the best nanoscale sources to date. & COPY; 2023 Optica Publishing Group
引用
收藏
页码:2085 / 2091
页数:7
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