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

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.

arXiv comment9 pages, 5 figures

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Cited by in corpus (5)

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• Additive Manufacturing of functionalised atomic vapour cells for next-generation quantum technologies
• Dual-frequency Doppler-free spectroscopy for simultaneous laser stabilisation in compact atomic physics experiments