International Conference on Optical MEMS and Nanophotonics

Multi-Core Fiber Tip Optical Excitation/Collection of NV-diamond Quantum Magnetic Resonance Sensor

Ksenia Shukhin, David Halfon, Nir Bar‐Gill, Dan M. Marom

Published Jul 28, 2024• 0 citations

Abstract

We developed an optical on-axis excitation / off-axis fluorescence collection system utilizing direct 3D-printing of refractive elements on the end-face of a multi-core fiber. The fiber-tip optical element is designed to operate as a highly sensitive magnetic sensor based on the quantum state transitions of nitrogen-vacancy (NV) centers in diamond. The reported optical refractive element is fabricated by direct laser writing and two-photon polymerization. Such a fiber tip mounted magnetic sensor opens a novel paradigm of localized MRI in miniaturized form factor, potentially applicable for biological/medical scenarios.

DOI: 10.1109/omn61224.2024.10685270

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