中国物理B ›› 2022, Vol. 31 ›› Issue (10): 104206-104206.doi: 10.1088/1674-1056/ac785f

所属专题： SPECIAL TOPIC — Optical field manipulation

• SPECIAL TOPIC—Optical field manipulation • 上一篇    下一篇

Enhanced single photon emission in silicon carbide with Bull's eye cavities

Xing-Hua Liu(刘兴华)1, Fang-Fang Ren(任芳芳)1,†, Jiandong Ye(叶建东)1, Shuxiao Wang(王书晓)2, Wei-Zong Xu(徐尉宗)1,‡, Dong Zhou(周东)1, Mingbin Yu(余明斌)2,§, Rong Zhang(张荣)1, Youdou Zheng(郑有炓)1, and Hai Lu(陆海)1   

  1. 1. School of Electronic Science and Engineering, Nanjing University, Nanjing 210023, China;
    2. State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
  • 收稿日期:2022-02-17 修回日期:2022-06-08 出版日期:2022-10-16 发布日期:2022-09-24
  • 通讯作者: Fang-Fang Ren, Wei-Zong Xu, Mingbin Yu E-mail:ffren@nju.edu.cn;wz.xu@nju.edu.cn;mingbin@mail.sim.ac.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 91850112, 61774081, 62004099, and 61921005), in part by Shenzhen Fundamental Research Program (Grant Nos. JCYJ20180307163240991 and JCYJ20180307154632609), in part by the State Key Research and Development Project of Jiangsu Province, China (Grant No. BE2018115), in part by the Natural Science Foundation of Jiangsu Province, China (Grant No. BK20201253), in part by the State Key Research and Development Project of Guangdong Province, China (Grant No. 2020B010174002), and in part by Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDB43020500).

Enhanced single photon emission in silicon carbide with Bull's eye cavities

Xing-Hua Liu(刘兴华)1, Fang-Fang Ren(任芳芳)1,†, Jiandong Ye(叶建东)1, Shuxiao Wang(王书晓)2, Wei-Zong Xu(徐尉宗)1,‡, Dong Zhou(周东)1, Mingbin Yu(余明斌)2,§, Rong Zhang(张荣)1, Youdou Zheng(郑有炓)1, and Hai Lu(陆海)1   

  1. 1. School of Electronic Science and Engineering, Nanjing University, Nanjing 210023, China;
    2. State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
  • Received:2022-02-17 Revised:2022-06-08 Online:2022-10-16 Published:2022-09-24
  • Contact: Fang-Fang Ren, Wei-Zong Xu, Mingbin Yu E-mail:ffren@nju.edu.cn;wz.xu@nju.edu.cn;mingbin@mail.sim.ac.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 91850112, 61774081, 62004099, and 61921005), in part by Shenzhen Fundamental Research Program (Grant Nos. JCYJ20180307163240991 and JCYJ20180307154632609), in part by the State Key Research and Development Project of Jiangsu Province, China (Grant No. BE2018115), in part by the Natural Science Foundation of Jiangsu Province, China (Grant No. BK20201253), in part by the State Key Research and Development Project of Guangdong Province, China (Grant No. 2020B010174002), and in part by Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDB43020500).

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摘要： The authors demonstrate a Bull's eye cavity design that is composed of circular Bragg gratings and micropillar optical cavity in 4H silicon carbide (4H-SiC) for single photon emission. Numerical calculations are used to investigate and optimize the emission rate and directionality of emission. Thanks to the optical mode resonances and Bragg reflections, the radiative decay rates of a dipole embedded in the cavity center is enhanced by 12.8 times as compared to that from a bulk 4H-SiC. In particular, a convergent angular distribution of the emission in far field is simultaneously achieved, which remarkably boost the collection efficiency. The findings of this work provide an alternative architecture to manipulate light—matter interactions for achieving high-efficient SiC single photon sources towards applications in quantum information technologies.

关键词: single photon sources, 4H-SiC, Bull's eye cavities, color centers

Abstract: The authors demonstrate a Bull's eye cavity design that is composed of circular Bragg gratings and micropillar optical cavity in 4H silicon carbide (4H-SiC) for single photon emission. Numerical calculations are used to investigate and optimize the emission rate and directionality of emission. Thanks to the optical mode resonances and Bragg reflections, the radiative decay rates of a dipole embedded in the cavity center is enhanced by 12.8 times as compared to that from a bulk 4H-SiC. In particular, a convergent angular distribution of the emission in far field is simultaneously achieved, which remarkably boost the collection efficiency. The findings of this work provide an alternative architecture to manipulate light—matter interactions for achieving high-efficient SiC single photon sources towards applications in quantum information technologies.

Key words: single photon sources, 4H-SiC, Bull's eye cavities, color centers

中图分类号:  (Cavity quantum electrodynamics; micromasers)

  • 42.50.Pq
42.79.Dj (Gratings) 42.15.Eq (Optical system design) 61.72.jn (Color centers)