Room-temperature magnetic gradiometry with fiber-coupled nitrogen-vacancy centers in diamond

Blakley, Sean M.; Федотов, И. В.; Kilin, S. Ya.; Желтиков, А. М.

doi:10.1364/ol.40.003727

Cited by 27 publications

(13 citation statements)

References 17 publications

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“…Although the highest sensitivities of NV-diamond-based magnetic field sensing and gradiometry have been achieved in a confocal microscopy scheme [5], integration of an NV-diamond sensor with a fiber-optic interface is often needed for a practical implementation of NV-diamond-based sensing in a variety of environments, including magnetic field and temperature measurements in biological systems. Optical detection of a magnetic resonance (ODMR) induced in NV centers in diamond on a fiber-optic platform [10] has been recently shown to provide a compact and powerful solid-state tool for room-temperature magnetic field imaging [11], magnetic gradiometry [12], and thermometry of single biological cells [13].…”

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confidence: 99%

High-resolution magnetic field imaging with a nitrogen-vacancy diamond sensor integrated with a photonic-crystal fiber

et al. 2016

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We demonstrate high-resolution magnetic field imaging with a scanning fiber-optic probe which couples nitrogen-vacancy (NV) centers in diamond to a high-numerical-aperture photonic-crystal fiber integrated with a two-wire microwave transmission line. Magnetic resonance excitation of NV centers driven by the microwave field is read out through optical interrogation through the photonic-crystal fiber to enable high-speed, high-sensitivity magnetic field imaging with sub 30 μm spatial resolution.

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High-resolution magnetic field imaging with a nitrogen-vacancy diamond sensor integrated with a photonic-crystal fiber

et al. 2016

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“…In this letter we presented a magnetic field stabilization based on NV centers, with the potential to stabilize magnetic fields much larger than previously possible. In combination with a fiber based approach to reading out the NV's spin states [22,23], this could allow for a new class of precision experiments in atomic physics.…”

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confidence: 99%

Direct control of high magnetic fields for cold atom experiments based on NV centers

et al. 2021

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In ultracold quantum gases, the interactions between the individual atoms can be controlled by applying magnetic bias fields. As magnetic field fluctuations limit the precision here, typically a feedback loop needs to be employed to regulate the current through a pair of Helmholtz coils. No commercially available magnetic field sensor allows to measure large fields directly with high enough precision, leading to many unsatisfactory solutions being used in experiments. Here, we demonstrate a direct magnetic field stabilization in a regime previously not accessible, using NV centers as the magnetic field sensor. This allows us to measure and stabilize fields of 4.66 mT down to 12 nT RMS noise over the course of 24 h, measured on a 1 Hz bandwidth. We achieve a control of better than 1 ppm after 20 min of integration time, ensuring high long-term stability for experiments. This approach extends direct magnetic field control to strong magnetic fields, which could enable new precise quantum simulations in this regime.

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“…The 2D magnetic field was imaged by the probe, using the photoluminescence spin-readout return from the NV centers. [288][289][290][291] In addition to advancements concerning the complexity of fiber tip electrode structures, high performance all-in-fiber devices, such as modulators, phototransistors, and Hall magnetic field sensors, will be developed in the future.…”

Section: Optical Modulationmentioning

confidence: 99%

Multifunctional integration on optical fiber tips: challenges and opportunities

Xiong

2020

Adv. Photon.

129

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The flat endface of an optical fiber tip is an emerging light-coupled microscopic platform that combines fiber optics with planar micro-and nanotechnologies. Since different materials and structures are integrated onto the endfaces, optical fiber tip devices have miniature sizes, diverse integrated functions, and low insertion losses, making them suitable for all-optical networks. In recent decades, the increasing demand for multifunctional optical fibers has created opportunities to develop various structures on fiber tips. Meanwhile, the unconventional shape of optical fibers presents challenges involving the adaptation of standard planar micro-and nanostructure preparation strategies for fiber tips. In this context, researchers are committed to exploring and optimizing fiber tip manufacturing techniques, thereby paving the way for future integrated all-fiber devices with multifunctional applications. First, we present a broad overview of current fabrication technologies, classified as "top-down," "bottom-up," and "material transfer" methods, for patterning optical fiber tips. Next, we review typical structures integrated on fiber tips and their known and potential applications, categorized with respect to functional structure configurations, including "optical functionalization" and "electrical integration." Finally, we discuss the prospects for future opportunities involving multifunctional integrated fiber tips.

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Room-temperature magnetic gradiometry with fiber-coupled nitrogen-vacancy centers in diamond

Cited by 27 publications

References 17 publications

High-resolution magnetic field imaging with a nitrogen-vacancy diamond sensor integrated with a photonic-crystal fiber

High-resolution magnetic field imaging with a nitrogen-vacancy diamond sensor integrated with a photonic-crystal fiber

Direct control of high magnetic fields for cold atom experiments based on NV centers

Multifunctional integration on optical fiber tips: challenges and opportunities

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