NDLI: Cavity-Q aging in the gas-cell atomic clock: studies with an atomic-candle signal

Content Provider	IEEE Xplore Digital Library
Author	Camparo, J.
Copyright Year	2003
Description	Author affiliation: Electron. & Photonics Lab., Aerosp. Corp., Los Angeles, CA, USA (Camparo, J.)
Abstract	Slow variations in cavity Q and microwave power are thought to play a role in the long-term frequency stability of gas-cell atomic clocks. Here, we use an atomic-candle method to study the aging of a TE/sub 011/ microwave cavity's resonant frequency and quality factor when a glass resonance cell containing Rb/sup 87/ loads the cavity. Our results suggest that the alkali vapor coats the inside glass surface of the resonance cell with a thin metallic film, and that as this film evolves the quality factor degrades. More generally, the present work demonstrates the efficacy of the atomic-candle method for investigating cavity resonances. In particular, we show that when used in conjunction with more traditional methods, the atomic-candle method has the potential to reveal information on a cavity mode's spatial profile.
Sponsorship	IEEE Ultrasonics, Ferroelectrics, and Frequency Control Soc. Piezoelectric Devises Association
Starting Page	41
Ending Page	48
File Size	633563
Page Count	8
File Format	PDF
ISBN	0780376889
ISSN	10756787
DOI	10.1109/FREQ.2003.1274984
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-05-04
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Aging Atomic clocks Resonance Q factor Glass Stability Tellurium Microwave theory and techniques Resonant frequency Degradation
Content Type	Text
Resource Type	Article

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