Nanodiamonds carrying silicon-vacancy quantum emitters with almost lifetime-limited linewidths

Nanodiamonds carrying silicon-vacancy quantum emitters with almost lifetime-limited linewidths

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...

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Bibliographic Details
Published in:New journal of physics Vol. 18; no. 7; pp. 73036 - 73042
Main Authors: Jantzen, Uwe, Kurz, Andrea B, Rudnicki, Daniel S, Schäfermeier, Clemens, Jahnke, Kay D, Andersen, Ulrik L, Davydov, Valery A, Agafonov, Viatcheslav N, Kubanek, Alexander, Rogers, Lachlan J, Jelezko, Fedor
Format: Journal Article
Language:English
Published: Bristol IOP Publishing 20-07-2016
Institute of Physics: Open Access Journals
Subjects:
Color centers
colour centre
Condensed Matter
Diamonds
Emitters
fluorescence
lifetime limit
Line spectra
nanodiamaond
Nanostructure
narrow band
Optical properties
Optics
Photoluminescence
Physics
quantum emitter
Quantum optics
Silicon
silicon vacancy
Vacancies
Silicon vacancy
colour centre
nanodiamaond
Fluorescence
lifetime limit
Quantum emitter
Narrow band
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Summary: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 nm at 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.
Bibliography:NJP-104745.R1
ISSN:1367-2630
1367-2630
DOI:10.1088/1367-2630/18/7/073036