NDLI: Microwave cavity design for an optically-pumped rubidium atomic beam clock

Content Provider	IEEE Xplore Digital Library
Author	Chang Liu Yanhui Wang
Copyright Year	2013
Description	Author affiliation: Sch. of Electron. Eng. & Comput. Sci., Peking Univ., Beijing, China (Chang Liu; Yanhui Wang)
Abstract	We design a microwave cavity for our developing compact optically-pumped rubidium beam frequency standard. For clock transition of $^{87}Rb$ (F=2, $m_{F}=0$ to F=1, $m_{F}=0),$ the central frequency is 6.8347GHz. The cavity made of WR90 waveguide in previous cesium beam clocks no longer works. In our design, we follow the method of Ramsey-type cavity in cesium beam clocks but change the cross section of waveguide. Some related modifications have to be made such as the lengths of waveguide. Unfortunately one is not likely to obtain analytical results on these values. Finite element analysis software helps to numerically solve the electromagnetic field based on arbitrary boundary conditions. Therefore, the resonant frequency and other characters of a cavity are computable when its dimensions are given. As a result, suitable dimensions can be determined to get a resonant frequency of 6.8347GHz. Considering other effects, e.g. end-to-end phase difference, more optimizations and requirements are proposed.
Sponsorship	IEEE Ultrason., Ferroelectr., Freq. Control Soc.
Starting Page	761
Ending Page	763
File Size	480930
Page Count	3
File Format	PDF
DOI	10.1109/EFTF-IFC.2013.6702138
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-07-21
Publisher Place	Czech Republic
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Microwave cavity Resonant frequency Microwave theory and techniques Cavity resonators Laser beams Rubidium beam clock Optical beams Frequency stability Atomic clocks
Content Type	Text
Resource Type	Article

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