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| 1 | On-chip excitation of single germanium vacancies in nanodiamonds embedded in plasmonic waveguides显示文摘Monolithic integration of quantum emitters in nanoscale plasmonic circuitry requires low-loss plasmonic configurations capable of confining light well below the diffraction limit.We demonstrated on-chip remote excitation of nanodiamond-embedded single quantum emitters by plasmonic modes of dielectric ridges atop colloidal silver crystals.The nanodiamonds were produced to incorporate single germanium-vacancy(GeV)centres,providing bright,spectrally narrow and stable single-photon sources suitable for highly integrated circuits.Using electron-beam lithography with hydrogen silsesquioxane(HSQ)resist,dielectric-loaded surface plasmon polariton waveguides(DLSPPWs)were fabricated on single crystalline silver plates to contain those of deposited nanodiamonds that are found to feature appropriate single GeV centres.The low-loss plasmonic configuration enabled the 532-nm pump laser light to propagate on-chip in the DLSPPW and reach to an embedded nanodiamond where a single GeV centre was incorporated.The remote GeV emitter was thereby excited and coupled to spatially confined DLSPPW modes with an outstanding figure-of-merit of 180 due to a~six-fold Purcell enhancement,~56%coupling efficiency and~33μm transmission length,thereby opening new avenues for the implementation of nanoscale functional quantum devices. | Hamidreza Siampour Shailesh Kumar Valery A.Davydov Liudmila F.Kulikova Viatcheslav N.Agafonov Sergey I.Bozhevolnyi | 2018 | Light(Science & Applications)2018，7，1： | 0 |
| 2 | NV色心磁强计研究进展及应用显示文摘基于金刚石氮空位(Nitrogen Vacancy,NV)色心的量子传感技术具有高灵敏度、高分辨率、全固态等优势,近年来引起了众多传感器研究机构的广泛关注。就NV色心在量子传感中的磁测量展开论述,首先介绍了NV色心的基本结构与磁测量原理,着重分析了微波天线、荧光高效收集、高灵敏磁测量方法以及集成磁强计设计等关键技术的最新研究进展,并针对当前存在的技术难题提出了技术发展方向。此外,还总结归纳了近些年NV磁强计在地磁探测、无损检测、生物医疗等领域的初步实际应用情况。 | 郑斗斗 郭浩 李中豪 马宗敏 唐军 刘俊 | 2022 | 导航与控制2022，21，5： | 0 |
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