• Chinese Journal of Quantum Electronics
  • Vol. 42, Issue 2, 255 (2025)
TAN Xin1,2,*, HE Zhanqing1,2, YANG Qiao1,2, WANG Jian1,2..., CANG Lei1,2, DU Yanlong1,2 and QI Hui1,2|Show fewer author(s)
Author Affiliations
  • 1School of Mechanical Engineering, Inner Mongolia University of Science & Technology, Baotou 014010, China
  • 2Key Laboratory of Micro/Nano Structure Design and Manufacturing Technology, Inner Mongolia University ofScience and Technology, Baotou 014010, China
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    DOI: 10.3969/j.issn.1007-5461.2025.02.011 Cite this Article
    Xin TAN, Zhanqing HE, Qiao YANG, Jian WANG, Lei CANG, Yanlong DU, Hui QI. Study on fluorescence collection efficiency of diamond nanopillar enhanced color center[J]. Chinese Journal of Quantum Electronics, 2025, 42(2): 255 Copy Citation Text show less

    Abstract

    Diamond nanopillars can improve the photon emission efficiency of color centers and have a focusing effect on the emitted photons. By using the time-domain finite-difference method, the effects of structural changes such as diameter, height and color center position of diamond nanopillar on parameters such as Purcell factor, photon transmittance and photon extraction efficiency of color centers in the nanopillars are studied in this work, the mechanism of the nanopillar structure enhancing the luminescence of color centers is discussed, and the optimal nanopillar structure parameters are explored to obtain the maximal total fluorescence collection of color centers. It is found that the total fluorescence collection of color centers under the optimal structure is 17 times higher than that of bulk diamond, and can be effectively collected by a microscope with numerical apertureNA=0.95. Among the structural parameters, the size error of nanopillar diameter has the greatest influence on fluorescence collection, but it can also be more than 13 times than that of bulk diamond even in the range of ±20 nm. This study provides a foundation for the design and preparation of diamond color-centered luminescence-enhanced structure.
    Xin TAN, Zhanqing HE, Qiao YANG, Jian WANG, Lei CANG, Yanlong DU, Hui QI. Study on fluorescence collection efficiency of diamond nanopillar enhanced color center[J]. Chinese Journal of Quantum Electronics, 2025, 42(2): 255
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