Diamond chip under single-photon driving as a high spatial resolution quantum magnetometer and electrometer

Alexander V. Tsukanov; Igor Yu. Kateev

doi:10.1117/12.2266858

30 December 2016 Diamond chip under single-photon driving as a high spatial resolution quantum magnetometer and electrometer

Alexander V. Tsukanov, Igor Yu. Kateev

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Proceedings Volume 10224, International Conference on Micro- and Nano-Electronics 2016; 102242H (2016) https://doi.org/10.1117/12.2266858
Event: The International Conference on Micro- and Nano-Electronics 2016, 2016, Zvenigorod, Russian Federation

Abstract

The problem of practical realization of a compact sensing device with high-spatial resolution is addressed. The principle of external field measuring uses analysis of transmission or reflection spectra from a diamond microstructure composed of three-microring optical resonators. Due to Zeeman and Stark shifts of energy levels of NV-centers formed in the microring edge the hybrid electron-photon spectrum changes depending on the strength and direction of magnetic and electric fields, respectively. A probe laser with a tunable wavelength excites the structure in a single-photon regime and its response enables one to detect the fields via spectral behavior. The model of the sensor dynamics accounts for both coherent driving and incoherent processes (center relaxation, dephasing and photon leakage) in terms of Lindblad formalism. With use of the finite-difference time-domain numerical method a three-ring spectrum is calculated and eigenmodes close to NV-center zero-phonon line are found. Electromagnetic field shows whispering-gallery behavior, so NV-center is coupled to a common three-ring mode antinode. As we show in the steady-state regime our approach gives the possibility of external fields measuring in a large intensity range with high sensitivity.

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Alexander V. Tsukanov and Igor Yu. Kateev "Diamond chip under single-photon driving as a high spatial resolution quantum magnetometer and electrometer", Proc. SPIE 10224, International Conference on Micro- and Nano-Electronics 2016, 102242H (30 December 2016); https://doi.org/10.1117/12.2266858

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KEYWORDS

Diamond

Magnetism

Phase modulation

Microrings

Sensors

Waveguides

Finite-difference time-domain method

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