金刚石中单个硅空位色心的荧光偏振切换

Fluorescence Polarization Switching from a Single Silicon Vacancy Colour Centre in Diamond.

作者信息

Liu Yan, Chen Gengxu, Rong Youying, McGuinness Liam Paul, Jelezko Fedor, Tamura Syuto, Tanii Takashi, Teraji Tokuyuki, Onoda Shinobu, Ohshima Takeshi, Isoya Junichi, Shinada Takahiro, Wu E, Zeng Heping

机构信息

State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, P. R. China.

Institute for Quantum Optics, University Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany.

出版信息

Sci Rep. 2015 Jul 23;5:12244. doi: 10.1038/srep12244.

DOI:10.1038/srep12244

PMID:26202940

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4511871/

Abstract

Single-photon emitters with stable and uniform photoluminescence properties are important for quantum technology. However, in many cases, colour centres in diamond exhibit spectral diffusion and photoluminescence intensity fluctuation. It is therefore essential to investigate the dynamics of colour centres at the single defect level in order to enable the on-demand manipulation and improved applications in quantum technology. Here we report the polarization switching, intensity jumps and spectral shifting observed on a negatively charged single silicon-vacancy colour centre in diamond. The observed phenomena elucidate the single emitter dynamics induced by photoionization of nearby electron donors in the diamond.

摘要

具有稳定且均匀光致发光特性的单光子发射器对量子技术至关重要。然而，在许多情况下，金刚石中的色心会表现出光谱扩散和光致发光强度波动。因此，研究单个缺陷水平上色心的动力学，对于实现量子技术中的按需操控和改进应用至关重要。在此，我们报告了在金刚石中带负电荷的单个硅空位色心上观察到的偏振切换、强度跃变和光谱移动。观察到的现象阐明了由金刚石中附近电子供体的光电离所诱导的单发射器动力学。