A fiber based diamond RF B-field sensor and characterization of a small helical antenna

Abstract

We present a microwave B-field scanning imaging technique using diamond micro-crystal containing nitrogen vacancy center that is attached to a fiber tip. We propose a pulsed modulation technique, enabling the implementation of a variety of pulsed quantum algorithm for state manipulation and fast readout of spin state. A detailed mapping of the magnetic B-field distribution of a helical antenna with sub-100 micron resolution is presented and compared with numerical simulations. This fiber based microwave B-field probe has the advantage of minimized invasiveness, small overall size, will boost broad interest in a variety of applications where near field distribution is essential to device characterization, to name a few, antenna radiation profiling, monolithic microwave integrated circuits failure diagnosis, electromagnetic compatibility test of microwave integrated circuits and microwave cavity field mode mapping.

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Cited by in corpus (6)

• Efficient nitrogen-vacancy centers' fluorescence excitation and collection from micrometer-sized diamond by a tapered optical fiber
• Optimized Planar Microwave Antenna for Nitrogen Vacancy Center based Sensing Applications
• A robust fiber-based quantum thermometer coupled with nitrogen-vacancy centers
• Tapered ultra-high Numerical Aperture optical fiber tip for Nitrogen Vacancy ensembles based endoscope in a fluidic environment
• Fiber-tip endoscope for optical and microwave control
• Miniaturized magnetic-field sensor based on nitrogen-vacancy centers