30 December 2016 Diamond chip under single-photon driving as a high spatial resolution quantum magnetometer and electrometer
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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, Alexander V. Tsukanov, Igor Yu. Kateev, 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); doi: 10.1117/12.2266858; https://doi.org/10.1117/12.2266858
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