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

• URL: http://arxiv.org/abs/2202.09213v2
• Date: Wed, 13 Jul 2022 15:31:29 GMT
• Title: Laser-written vapor cells for chip-scale atomic sensing and spectroscopy
• Authors: Vito Giovanni Lucivero, Andrea Zanoni, Giacomo Corrielli, Roberto Osellame and Morgan W. Mitchell
• Abstract summary: We report the fabrication of alkali-metal vapor cells using femtosecond laser machining. This technology allows arbitrarily-shaped 3D interior volumes and has potential for integration with photonic structures and optical components.
• Score: 1.3999481573773074
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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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