Magnetic sensitivity enhancement via polarimetric excitation and detection of an ensemble of NV centers

2023/01/30 by Simone Magaletti, Magaletti, Simone, Ludovic Mayer +5 · 1 citation
Physics and Astronomy · #Atomic and Subatomic Physics Research #FOS: Physical sciences #Optics (physics.optics) #Quantum Physics (quant-ph) #Quantum and electron transport phenomena #Quantum optics and atomic interactions

paper · pdf · doi:10.48550/arxiv.2301.12758

openalex publication_date 2023/01/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

The negatively charged nitrogen-vacancy center (NV) presents remarkable spin-dependent optical properties that make it an interesting tool for magnetic field sensing. In this paper we exploit the polarization properties of the NV center absorption and emission processes to improve the magnetic sensitivity of an ensemble of NV centers. By simply equipping the experimental set-up of a half-wave plate in the excitation path and a polarizer in the detection path we demonstrate an improvement larger than a factor of two on the NV center magnetic sensitivity.

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