All-Optical Wide-Field Magnetometry Achieved Using Van Der Waals Quantum Sensor

[Submitted on 5 Jun 2026]

16d ago· 2 min readenNews

Summary

This article presents a novel all-optical strategy for wide-field magnetometry using negatively charged boron vacancy (VB-) centers in hexagonal boron nitride (h-BN). The method exploits the magnetically sensitive ground-state level anti-crossing (GSLAC) of VB- centers, enabling microwave-free magnetic field measurement. The researchers demonstrate all-optical wide-field imaging of near-field DC magnetic field distribution from current-carrying circuits over an area of approximately 42 × 21 μm². They achieve a photon shot-noise-limited sensitivity of 67.1 μT/√Hz for a single pixel—about three times better than the ODMR method—with a spatial resolution of about 1 μm per pixel. This approach expands the applicability of VB- centers in quantum sensing for robust magnetometry under extreme conditions.

Source

bskyAll-Optical Wide-Field Magnetometry Achieved Using Van Der Waals Quantum Sensorarxiv.org

Key quotes

· 4 pulled

Here we propose and experimentally demonstrate an all-optical strategy for wide-field magnetometry based on $V_B^-$ centers.

By monitoring the shift of GSLAC feature, the external magnetic field can be precisely determined.

An estimated photon shot-noise-limited sensitivity of 67.1 $μ$T/$\sqrt{\text{Hz}}$ is achieved for a single pixel, which is an approximately threefold improvement over the ODMR method, along with a spatial resolution of about 1 $μ$m per pixel.

Our approach expands the applicability of $V_B^-$ centers in quantum sensing, paving the way for robust and convenient magnetometry under extreme conditions.

Snippet from the RSS feed

Negatively charged boron vacancy ($V_B^-$) centers in hexagonal boron nitride ($h$-BN) have attracted wide-range interests owing to their van der Waals lattice and their potentials for $in$-$situ$ quantum sensing. Here we propose and experimentally demons

You might also wanna read

Nanocrystal Light Emission Reveals Quantum Zero-Point Motion in Atomic Lattice

Researchers have observed unexpected light emission from a nanocrystal cooled to near absolute zero, which is shown to arise from quantum fl

physics.aps.org·7mo ago

Magnetic-field-assisted CO2 electroreduction using precision-engineered Ga–Gd oxide nanodomain interfaces

This article presents original scientific research on a novel approach to CO2 electroreduction using magnetic-field-assisted catalysis at pr

pubs.acs.org·12h ago

All-Optical Chip Enables Large-Scale AI Semantic Vision Generation

Researchers have developed an all-optical synthesis chip that addresses the computing power shortage in large-scale generative AI models. Th

science.org·5mo ago

MEMS Photonics Chip Enables Control of Millions of Quantum Qubits with Laser Steering

Researchers from MITRE, MIT, University of Colorado Boulder, and Sandia National Laboratories have developed a MEMS (micro-electro-mechanica

spectrum.ieee.org·2mo ago

Atomically precise carbon structure fabrication demonstrated using inverted-mode STM mechanosynthesis

Researchers demonstrate atomically precise mechanosynthesis of carbon structures on a hydrogen-passivated Si(100) surface using inverted-mod

arxiv.org·29d ago

Comments

No comments yet. Be the first.