Lucivero VG, Zanoni A, Corrielli G, Osellame R, Mitchell MW. Laser-written vapor cells for chip-scale atomic sensing and spectroscopy.
OPTICS EXPRESS 2022;
30:27149-27163. [PMID:
36236892 DOI:
10.1364/oe.469296]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 07/01/2022] [Indexed: 06/16/2023]
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.
Collapse