White, Christopher J. and Hajimiri, Ali (2005) A Solid-State Atomic Frequency Standard. In: 2005 IEEE International Frequency Control Symposium and Exposition. Proceedings of the IEEE International Frequency Control Symposium and Exposition . IEEE , Piscataway, NJ, pp. 940-946. ISBN 0-7803-9052-0 http://resolver.caltech.edu/CaltechAUTHORS:20110825-151120289
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This paper describes a new class of frequency reference. The frequency source uses the same operating principle as a passive atomic frequency standard; however, the device is entirely solid-state, removing many cost and reliability issues associated with gas phase atomic clocks. More specifically, the "atomic resonance" is derived from zero-field magnetic resonance transitions of the vanadium ion in magnesium oxide. The characteristics of these resonances will be described in detail. The apparatus for measuring the "atomic" resonances uses a microwave resonant cavity and frequency-discriminator circuit. Using integrated circuits, the radio-frequency signal processing functions can be implemented at very low cost in a reliable manufacturing process. We discuss the system design and the measurement sensitivity. The estimated short term stability is in the range of 10^(-8) to 10^(-9) @ 1 s. Advantages of the new frequency reference may include immunity to vibration, reduced aging compared to crystal oscillators, and immediate cold start.
|Item Type:||Book Section|
|Additional Information:||© 2005 IEEE. Issue Date: 29-31 Aug. 2005. Date of Current Version: 16 January 2006. The authors thank Richard Bramley for generously discussing his earlier zero-field paramagnetic resonance work. Thanks also to James White for assisting with the resonator fabrication, and to Philip Feng for annealing the magnesium oxide crystals.|
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|Official Citation:||White, C.J.; Hajimiri, A.H.; , "A solid-state atomic frequency standard," Frequency Control Symposium and Exposition, 2005. Proceedings of the 2005 IEEE International , vol., no., pp. 7 pp., 29-31 Aug. 2005 doi: 10.1109/FREQ.2005.1574061 URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=1574061&isnumber=33284|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Tony Diaz|
|Deposited On:||25 Aug 2011 22:56|
|Last Modified:||25 Aug 2011 22:56|
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