Little bits of diamond: Optically detected magnetic resonance of nitrogen-vacancy centers

Zhang, Haimei; Belvin, Carina; Li, Wanyi; Wang, Jennifer; Wainwright, J.P.; Berg, Robbie; Bridger, Joshua

doi:10.1119/1.5023389

Cited by 22 publications

(13 citation statements)

References 24 publications

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“…We note that there are recent reports describing experimental setups for NV centers in detail. 35,36 A major distinction between those and ours is whether a system is designed for ensemble or single NV centers. The setup for the former is more robust against misalignment than that for the latter, because (i) it does not require highprecision scanning stages and (ii) the photon counts are significantly enhanced.…”

Section: Introductionmentioning

confidence: 99%

Construction and operation of a tabletop system for nanoscale magnetometry with single nitrogen-vacancy centers in diamond

et al. 2020

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A single nitrogen-vacancy (NV) center in diamond is a prime candidate for a solid-state quantum magnetometer capable of detecting single nuclear spins with prospective application to nuclear magnetic resonance (NMR) at the nanoscale. Nonetheless, an NV magnetometer is still less accessible to many chemists and biologists, as its experimental setup and operational principle are starkly different from those of conventional NMR. Here, we design, construct, and operate a compact tabletop-sized system for quantum sensing with a single NV center, built primarily from commercially available optical components and electronics. We show that our setup can implement state-of-the-art quantum sensing protocols that enable the detection of single 13 C nuclear spins in diamond and the characterization of their interaction parameters, as well as the detection of a small ensemble of proton nuclear spins on the diamond surface. This article providing extensive discussions on the details of the setup and the experimental procedures, our system will be reproducible by those who have not worked on the NV centers previously.

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Section: Introductionmentioning

confidence: 99%

Construction and operation of a tabletop system for nanoscale magnetometry with single nitrogen-vacancy centers in diamond

et al. 2020

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“…The expected energy difference predicted by the Hamiltonian parameters (

f_{normalres} = 2.87

GHz) was verified with an ODMR measurement (Figure 3D (inset)). Additional energy splitting due to intrinsic strain that lifts the

m_{normals} = \pm 1

level degeneracy [ 33 ] can also be clearly observed. Experimental Zeeman splitting values were obtained for different values of the external magnetic field (Figure 3D), which matched the expected values for the

S = 1

system of

Δ f = 140

MHz ( B = 2.5 mT) and

Δ f = 86

MHz ( B = 1.5 mT).…”

Section: Spoof Plasmon Waveguidesmentioning

confidence: 99%

Giant Microwave Spontaneous Emission Enhancements in Planar Aperture Waveguide Structures

et al. 2021

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Microwave interactions are an invaluable tool for probing atomic states of matter and are currently being extensively explored for the development of scalable quantum computing. However, many of the available methods for spectroscopic analysis and photonic quantum manipulations are inaccessible for microwaves due to the weak spontaneous emission of quantum emitters. In this work, a mechanism for giant resonant enhancement of spontaneous emission from magnetic dipole emitters is suggested that employs a new phenomenon of near field impedance cancellation via magnetic flux confinement. Enhancements of at least 1011 are theoretically shown for structures with 100 nm features, and much greater potential enhancements are predicted with this method. Subsequently, the realization of integrated systems with enhanced quantum emitters using microwave spoof plasmon waveguides is demonstrated. Taken together, these findings will pave the way for microwave quantum photonics and microwave hybrid quantum computing.

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“…The NV − center in diamond is an especially advantageous quantum system for a teaching lab as its electron spins can be initialized, controlled, and read out at room temperature in ambient atmosphere [2], strongly reducing the complexity of the experimental apparatus. Hence it has previously been recommended for teaching lab setups for magnetic resonance and magnetometry [3], and is even available as a commercial system [4]. However, coherent control of the electronic spin state has not been demonstrated in a convenient and cost-effective fashion.…”

Section: Introductionmentioning

confidence: 99%

Coherent control of NV- centers in diamond in a quantum teaching lab

Sewani,

Vallabhapurapu,

Yang

et al. 2020

Preprint

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The room temperature compatibility of the negatively-charged nitrogen-vacancy (NV − ) in diamond makes it the ideal quantum system for a university teaching lab. Here, we describe a low-cost experimental setup for coherent control experiments on the electronic spin state of the NV − center. We implement spin-relaxation measurements, optically-detected magnetic resonance, Rabi oscillations, and dynamical decoupling sequences on an ensemble of NV − centers. The relatively short times required to perform each of these experiments (<10 minutes) demonstrate the feasibility of the setup in a teaching lab. Learning outcomes include basic understanding of quantum spin systems, magnetic resonance, the rotating frame, Bloch spheres, and pulse sequence development.

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Little bits of diamond: Optically detected magnetic resonance of nitrogen-vacancy centers

Cited by 22 publications

References 24 publications

Construction and operation of a tabletop system for nanoscale magnetometry with single nitrogen-vacancy centers in diamond

Construction and operation of a tabletop system for nanoscale magnetometry with single nitrogen-vacancy centers in diamond

Giant Microwave Spontaneous Emission Enhancements in Planar Aperture Waveguide Structures

Coherent control of NV- centers in diamond in a quantum teaching lab

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