Fast, Broad-Band Magnetic Resonance Spectroscopy with Diamond Widefield Relaxometry

Mignon, Charles; Moreno, Ari R Ortiz; Shirzad, Hoda; Padamati, Sandeep K.; Damle, Viraj; Ong, Yori; Schirhagl, Romana; Chipaux, Mayeul

doi:10.1021/acssensors.2c02809

Cited by 4 publications

(1 citation statement)

References 40 publications

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“…• NV center ODMR properties can be extended to polarize [50][51][52] and/or detect [53][54][55][56] other electron or nuclear spins in their vicinity and perform their magnetic resonance spectroscopy [57,58]. In these cases the sensitivity can go down to a single nuclear spin, orders of magnitude better than conventional electron paramagnetic resonance (EPR) and nuclear magnetic resonance (NMR) methods.…”

Section: Main Odmr Systems and Their Applicationsmentioning

confidence: 99%

Optically detected magnetic resonance with an open source platform

Babashah,

Shirzad,

Losero

et al. 2023

SciPost Phys. Core

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Localized electronic spins in solid-state environments form versatile and robust platforms for quantum sensing, metrology and quantum information processing. With optically detected magnetic resonance (ODMR), it is possible to prepare and readout highly coherent spin systems, up to room temperature, with orders of magnitude enhanced sensitivities and spatial resolutions compared to induction-based techniques, allowing for single spin manipulations. While ODMR was first observed in organic molecules, many other systems have since then been identified. Among them is the nitrogen-vacancy (NV) center in diamond, which is used both as a nanoscale quantum sensor for external fields and as a spin qubit. Other systems permitting ODMR are rare earth ions used as quantum memories and many other color centers trapped in bulk or 2-dimensional host materials. In order to allow the broadest possible community of researchers and engineers to investigate and develop novel ODMR-based materials and applications, we review here the setting up of ODMR experiments using commercially available hardware. We also present in detail the dedicated collaborative open-source interface named Qudi and describe the features we added to speed-up data acquisition, relax instrument requirements and extend its applicability to ensemble measurements. Covering both hardware and software development, this article aims to overview the setting of ODMR experiments and provide an efficient, portable and collaborative interface to implement innovative experiments to optimize the development time of ODMR experiments for scientists of any backgrounds.

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Section: Main Odmr Systems and Their Applicationsmentioning

confidence: 99%

Optically detected magnetic resonance with an open source platform

Babashah,

Shirzad,

Losero

et al. 2023

SciPost Phys. Core

Self Cite

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Diamond Surfaces with Lateral Gradients for Systematic Optimization of Surface Chemistry for Relaxometry – a Low-Pressure Plasma-Based Approach

Tian,

Ortiz Moreno,

Chipaux

et al. 2024

Langmuir

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Diamond is increasingly popular because of its unique material properties. Diamond defects called nitrogen vacancy (NV) centers allow for measurements with unprecedented sensitivity. However, to achieve ideal sensing performance, NV centers need to be within nanometers from the surface and are thus strongly dependent on the local surface chemistry. Several attempts have been made to compare diamond surfaces. However, due to the high price of diamond crystals with shallow NV centers, a limited number of chemical modifications have been studied. Here, we developed a systematic method to investigate the continuity of different local environments with varying densities and natures of surface groups in a single experiment on a single diamond plate. To achieve this goal, we used diamonds with a shallow ensemble of NV centers and introduced a chemical gradient across the surface. More specifically, we used air and hydrogen plasma. The gradients were formed by a low-pressure plasma treatment after masking with a rightangled triangular prism shield. As a result, the surface contained gradually more oxygen/ hydrogen toward the open end of the shield. We then performed wide-field relaxometry to determine the effect of surface chemistry on the sensing performance. As expected, relaxation times and thus sensing performance indeed vary along the gradient.

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Lipid peroxidation in diamond supported bilayers

Moreno

et al. 2023

Nanoscale

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Fast, Broad-Band Magnetic Resonance Spectroscopy with Diamond Widefield Relaxometry

Cited by 4 publications

References 40 publications

Optically detected magnetic resonance with an open source platform

Optically detected magnetic resonance with an open source platform

Diamond Surfaces with Lateral Gradients for Systematic Optimization of Surface Chemistry for Relaxometry – a Low-Pressure Plasma-Based Approach

Lipid peroxidation in diamond supported bilayers

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