Spin colour centres in SiC as a material platform for sensing and information processing at ambient conditions

Andrey Anisimov,Victor Soltamov,Vladimir Dyakonov,Georgy Astakhov,Pavel Baranov,A.V Naumov,M.G Gladush,K.R Karimullin

doi:10.1051/epjconf/201819004001

Andrey Anisimov, Victor Soltamov + Show 6 more

Open Access

https://doi.org/10.1051/epjconf/201819004001

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Journal: EPJ web of conferences	Publication Date: Jan 1, 2018
License type: CC BY 4.0

Affiliation: University of Würzburg

Abstract

Atomic-scale colour centres in bulk and nanocrystalline SiC are promising systems for quantum photonics compatible with fiber optics, quantum information processing and sensing at ambient conditions. Colour centres which acts as stable single photon sources in SiC can be key elements for quantum photonics and communications. It has been shown that there are at least two families of colour centres in SiC with S = 1 and S = 3/2, which have the property of optical alignment of the spin levels even at room temperature and above. The spin state can be initialized, manipulated and readout by means of optically detected magnetic resonance (ODMR), level anticrossing and cross-relaxation. Recently, we observed the effects of “hole burning” in the ODMR spectra, which made it possible to narrow the ODMR line by approximately an order of magnitude, which substantially increases the possibilities of technological applications of spin centres.

Highlights

Atomic-scale colour centres in bulk and nanocrystalline silicon carbide (SiC) are promising systems for quantum photonics compatible with fiber optics, quantum information processing and sensing at ambient conditions
Atomic-scale colour centres in bulk and nanocrystalline SiC are promising for quantum information processing, photonics compatible with fiber optics and sensing at ambient conditions
It has been shown that there are at least two families of colour centres in SiC with S = 1 and S = 3/2, which have the property of optical alignment of the spin levels and allow a spin manipulation

Summary

Introduction

Atomic-scale colour centres in bulk and nanocrystalline SiC are promising systems for quantum photonics compatible with fiber optics, quantum information processing and sensing at ambient conditions. Atomic-scale colour centres in bulk and nanocrystalline SiC are promising for quantum information processing, photonics compatible with fiber optics and sensing at ambient conditions. Their spin state can be initialized, manipulated and readout by means of optically detected magnetic resonance (ODMR), level anticrossing (LAC), cross-relaxation (CR) [4] and hole-burning radio-frequency spectrum analysis [3].

Results

Conclusion