典型文献
Scalable and highly efficient approach for an on-chip single-photon source
文献摘要：
Integrated photonic circuits with quantum dots provide a promising route for scalable quantum chips with highly efficient photonic sources.However,unpolarized emission photons in general sacrifice half efficiency when cou-pling to the waveguide fundamental mode by a cross polarization technique for suppressing the excitation laser,while suspended waveguide photonics sources without polarization filters have poor scalability due to their mechanical fragility.Here,we propose a strategy for overcoming the challenge by coupling an elliptical Bragg resonator with waveguides on a solid-state base,featuring near-unity polarization efficiency and enabling on-chip pulsed resonant excitation without any polarization filters.We theoretically demonstrate that the pro-posed devices have outstanding performance of a single-photon source with 80％coupling efficiency into on-chip planar waveguides and an ultra-small extinction ratio of 10-11,as well as robustness against quantum dot position deviation.Our design provides a promising method for scalable quantum chips with a filter-free high-efficiency single-photon source.
文献关键词：
中图分类号：
作者姓名：
XINGYU CHEN;RONGBIN SU;JIN LIU;JUNTAO LI;XUE-HUA WANG
作者机构：
State Key Laboratory of Optoelectronic Materials and Technologies,School of Physics,Sun Yat-sen University,Guangzhou 510000,China
文献出处：
引用格式：
[1]XINGYU CHEN;RONGBIN SU;JIN LIU;JUNTAO LI;XUE-HUA WANG-.Scalable and highly efficient approach for an on-chip single-photon source)[J].光子学研究（英文）,2022(09):2066-2072
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AB值：
0.5846
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