期刊
NEW JOURNAL OF PHYSICS
卷 18, 期 -, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1367-2630/18/7/073036
关键词
nanodiamaond; colour centre; silicon vacancy; narrow band; quantum emitter; lifetime limit; fluorescence
资金
- ERC project BioQ
- EU project SIQS
- EU project EQUAM
- DFG [SFB/TR21, FOR 1493]
- Volkswagenstiftung
- BMBF
- Carl-Zeiss Foundation
- Wissenschaftler-Ruckkehrprogramm GSO/CZS
- IQST
- NATO 'Science for Peace' grant [CBP.MD.SFP 983932]
- KNOW project
- Russian Foundation for Basic Research [15-03-04490]
Colour centres in nanodiamonds are an important resource for applications in quantum sensing, biological imaging, and quantum optics. Here we report unprecedented narrow optical transitions for individual colour centres in nanodiamonds smaller than 200 nm. This demonstration has been achieved using the negatively charged silicon vacancy centre, which has recently received considerable attention due to its superb optical properties in bulk diamond. We have measured an ensemble of silicon-vacancy centres across numerous nanodiamonds to have an inhomogeneous distribution of 1.05 nmat 5 K. Individual spectral lines as narrower than 360 MHz were measured in photoluminescence excitation, and correcting for apparent spectral diffusion yielded an homogeneous linewidth of about 200 MHz which is close to the lifetime limit. These results indicate the high crystalline quality achieved in these nanodiamond samples, and advance the applicability of nanodiamond-hosted colour centres for quantum optics applications.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据