Simultaneous Wide-field Imaging of Phase and Magnitude of AC Magnetic Signal Using Diamond Quantum Magnetometry

• URL: http://arxiv.org/abs/2001.02374v1
• Date: Wed, 8 Jan 2020 04:56:11 GMT
• Title: Simultaneous Wide-field Imaging of Phase and Magnitude of AC Magnetic Signal Using Diamond Quantum Magnetometry
• Authors: Kosuke Mizuno, Hitoshi Ishiwata, Yuta Masuyama, Takayuki Iwasaki, Mutsuko Hatano
• Abstract summary: A simple measurement scheme for independent and simultaneous detection of magnitude and phase is demonstrated. Our method enables potential applications including inductive inspection and impedance imaging.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Spectroscopic analysis of AC magnetic signal using diamond quantum magnetometry is a promising technique for inductive imaging. Conventional dynamic decoupling like XY8 provides a high sensitivity of an oscillating magnetic signal with intricate dependence on magnitude and phase, complicating high throughput detection of each parameter. In this study, a simple measurement scheme for independent and simultaneous detection of magnitude and phase is demonstrated by a sequential measurement protocol. Wide-field imaging experiment was performed for an oscillating magnetic field with approximately 100$\mu$m-squared observation area. Single pixel phase precision was $2.1^\circ$ for 0.76$\mu$T AC magnetic signal. Our method enables potential applications including inductive inspection and impedance imaging.

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