Quantum sensing with multiple optically addressable spin defects in hexagonal boron nitride

Priya Singh; Sam C. Scholten; Alexander J. Healey; Islay O. Robertson; Galya Haim; Cheng Tan; David A. Broadway; Lan Wang; Hiroshi Abe; Takeshi Ohshima; Mehran Kianinia; Philipp Reineck; Igor Aharonovich; Jean-Philippe Tetienne

doi:10.1117/12.3027793

4 October 2024 Quantum sensing with multiple optically addressable spin defects in hexagonal boron nitride

Priya Singh, Sam C. Scholten, Alexander J. Healey, Islay O. Robertson, Galya Haim, Cheng Tan, David A. Broadway, Lan Wang, Hiroshi Abe, Takeshi Ohshima, Mehran Kianinia, Philipp Reineck, Igor Aharonovich, Jean-Philippe Tetienne

Author Affiliations +

Proceedings Volume 13120, Quantum Nanophotonic Materials, Devices, and Systems 2024; 1312003 (2024) https://doi.org/10.1117/12.3027793
Event: Nanoscience + Engineering, 2024, San Diego, California, United States

Abstract

Optically addressable spin defects hosted in two-dimensional van der Waals materials represent a new frontier for quantum technologies, promising to lead to a new class of ultrathin quantum sensors and simulators. Recently, hexagonal boron nitride (hBN) has been shown to host several types of optically addressable spin defects, thus offering a unique opportunity to utilise various spin species in a single material. Here we demonstrate the co-existence of two separate spin species within a single hBN powder sample, namely boron vacancy defects and visible emitter spins. To identify the two spin species, we studied photoluminescence (PL) and optically detected magnetic resonance (ODMR) spectra for the as-received commercially sourced hBN powder and after electron irradiation. Further, we prepared a film of hBN powder on a test magnetic sample (a patterned CoFeB film with in-plane magnetization) and used the hBN spins to spatially map the sample’s stray magnetic field at room temperature.Our results establish hBN as a versatile platform for quantum technologies in a van der Waals host at room temperature.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Priya Singh, Sam C. Scholten, Alexander J. Healey, Islay O. Robertson, Galya Haim, Cheng Tan, David A. Broadway, Lan Wang, Hiroshi Abe, Takeshi Ohshima, Mehran Kianinia, Philipp Reineck, Igor Aharonovich, and Jean-Philippe Tetienne "Quantum sensing with multiple optically addressable spin defects in hexagonal boron nitride", Proc. SPIE 13120, Quantum Nanophotonic Materials, Devices, and Systems 2024, 1312003 (4 October 2024); https://doi.org/10.1117/12.3027793

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