Abstract We present the design and theoretical simulation of a nano-range optical structure with an elliptical solid immersion lens (e-SIL) in a rectangular diamond substrate containing nitrogen–vacancy (NV) center in diamond. We have varied the numerical aperture of the objective lens and collected photons with a maximum collection efficiency of ∼ 88% for NA=1. The far field variations have been studied over a wide range of emission spectra of nitrogen–vacancy center in diamond. This highly efficient single-photon emitter has a wide range of applications in the field of nanoscale magnetic sensing and quantum information devices.

中文翻译：

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具有嵌入式锥形结构的新型 e-SIL，用于提高金刚石中氮空位中心的光子收集效率

摘要 我们介绍了在包含金刚石中氮空位 (NV) 中心的矩形金刚石基板中具有椭圆固体浸没透镜 (e-SIL) 的纳米范围光学结构的设计和理论模拟。我们改变了物镜的数值孔径和收集的光子，当 NA=1 时，最大收集效率约为 88%。已在金刚石中氮空位中心的广泛发射光谱范围内研究了远场变化。这种高效的单光子发射器在纳米磁传感和量子信息器件领域有着广泛的应用。