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Microfabrication of 85Rb vapor cell for chip-scale atomic clocks

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4 Author(s)
Juan Su ; Key Lab. for the Physics & Chemistry of Nanodevices, School of Electronic Engineering & Computer Sciences (EECS), Peking University, Beijing 100871, China ; Ke Deng ; Zhong Wang ; Deng-zhu Guo

We describe the fabrication of Rubidium (Rb) vapor cells using glass-silicon anodic bonding techniques and chemical reaction between rubidium chloride and barium azide. The pure metallic Rb drops and buffer gases were obtained in the cells with few mm3 internal volumes. The optical absorption resonance of 85Rb D1 transition with proper broadening and the corresponding coherent population trapping (CPT) resonance, with a signal contrast of 1.5% and linewidth of about 1.7 KHz, have been detected at 90degC.

Published in:

2009 IEEE International Frequency Control Symposium Joint with the 22nd European Frequency and Time forum

Date of Conference:

20-24 April 2009