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arXiv · 2202.09213

Laser-written vapor cells for chip-scale atomic sensing and spectroscopy

Vito Giovanni Lucivero·Andrea Zanoni·Giacomo Corrielli·Roberto Osellame·Morgan W. Mitchell
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Abstract

We report the fabrication of alkali-metal vapor cells using femtosecond laser machining. This laser-written vapor-cell (LWVC) technology allows arbitrarily-shaped 3D interior volumes and has potential for integration with photonic structures and optical components. We use non-evaporable getters both to dispense rubidium and to absorb buffer gas. This enables us to produce cells with sub-atmospheric buffer gas pressures without vacuum apparatus. We demonstrate sub-Doppler saturated absorption spectroscopy and single beam optical magnetometry with a single LWVC. The LWVC technology may find application in miniaturized atomic quantum sensors and frequency references.

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Vito Giovanni Lucivero, Andrea Zanoni, Giacomo Corrielli, Roberto Osellame, Morgan W. Mitchell. 2022-02-18. Laser-written vapor cells for chip-scale atomic sensing and spectroscopy. https://doi.org/10.1364/oe.469296

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