量子电子学报2025，Vol.42Issue(2)：255-264,10.DOI:10.3969/j.issn.1007-5461.2025.02.011
金刚石纳米柱增强色心荧光收集效率研究
Study on fluorescence collection efficiency of diamond nanopillar enhanced color center
摘要
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 aperture NA=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.关键词
量子光学/荧光增强/时域有限差分方法/纳米柱/金刚石Key words
quantum optics/fluorescence enhancement/time-domain finite-difference method/nanopillar/diamond分类
信息技术与安全科学引用本文复制引用
谭心,贺占清,杨桥,王健,苍磊,杜岩龙,祁晖..金刚石纳米柱增强色心荧光收集效率研究[J].量子电子学报,2025,42(2):255-264,10.基金项目
国家自然科学基金(62365015,61765012,51965053),国家重点研发计划(2017YFF0207200,2017YFF0207203),内蒙古自然科学基金(2023MS05047,2019MS05008,2020MS05036),内蒙古自治区直属高校基本科研业务费项目(2023RCTD011,2023YXXS012),内蒙古自治区科技创新指导项目(2017CXYD-2,KBCJ2018031),内蒙古科技大学青年基金项目(202/0303022006),内蒙古自治区高等学校科学研究项目(NJZY23082) （62365015,61765012,51965053）
