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.

9 pages, 5 figures

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• An integrated magnetometry platform with stackable waveguide-assisted detection channels for sensing arrays
• Cavity-enhanced polarization rotation measurements for low-disturbance probing of atoms

Cited by in corpus (5)

• Continuous wideband microwave-to-optical converter based on room-temperature Rydberg atoms
• Functionalized mm-scale vapor cells for alkali-metal spectroscopy and magnetometry
• Cavity-enhanced detection of spin polarization in a microfabricated atomic vapor cell
• 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