GPa Pressure Imaging Using Nanodiamond Quantum Sensors

• URL: http://arxiv.org/abs/2506.09058v1
• Date: Wed, 04 Jun 2025 12:00:12 GMT
• Title: GPa Pressure Imaging Using Nanodiamond Quantum Sensors
• Authors: Ryotaro Suda, Kenshin Uriu, Kouki Yamamoto, Misaki Sasaki, Kento Sasaki, Mari Einaga, Katsuya Shimizu, Kensuke Kobayashi,
• Abstract summary: We demonstrate wide-field optical microscopy of the pressure distribution at approximately 20 GPa in a diamond anvil cell (DAC)<n>We use nitrogen-vacancy (NV) centers in nanodiamonds (NDs) as quantum sensors.<n>Pressure and non-hydrostaticity maps are obtained by fitting optically detected magnetic resonance (ODMR) spectra with models incorporating hydrostatic and uniaxial stress conditions.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We demonstrate wide-field optical microscopy of the pressure distribution at approximately 20 GPa in a diamond anvil cell (DAC), using nitrogen-vacancy (NV) centers in nanodiamonds (NDs) as quantum sensors. Pressure and non-hydrostaticity maps are obtained by fitting optically detected magnetic resonance (ODMR) spectra with models incorporating hydrostatic and uniaxial stress conditions. Two methods for introducing NDs with a pressure-transmitting medium are compared, revealing that the embedding approach affects the degree of non-hydrostaticity. This ND-based technique offers a powerful imaging platform for probing pressure-induced phenomena and is extendable to other physical quantities such as magnetic fields.

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