Title :
Prospects for the use of multilambda Rabi cavities in atomic beam frequency standards
Author :
Bava, E. ; De Marchi, A. ; Tavella, P.
Author_Institution :
Politecnico di Torino, Italy
Abstract :
An analysis of the transition probability for an atomic beam excited by resonant microwave radiation in a TE01n cavity fed in the center is presented. Results of the numerical integration of the Schrodinger equation and an analytical approximation obtained by means of a Magnus expansion are given. The agreement is satisfactory up to the n = 7 case, which is the highest-order examined. No asymmetry was assumed in the center feed, mainly because its effect can be shown to be very small for a cylindrical cavity, since the TE01n mode in that kind of structure has very low losses on the side walls. The analytical and numerical results support the idea that a Ramsey cavity is not always the only solution for guiding microwaves in a beam standard
Keywords :
Schrodinger equation; atomic clocks; cavity resonators; frequency measurement; measurement standards; numerical analysis; radiative lifetimes; Magnus expansion; Ramsey cavity; Schrodinger equation; TE01n cavity; analytical approximation; atomic beam frequency standards; cylindrical cavity; multilambda Rabi cavities; numerical integration; resonant microwave radiation; transition probability analysis; Angular velocity; Atomic beams; Atomic clocks; Frequency; Laboratories; Magnetic analysis; Microwave devices; Optical coupling; Phase measurement; Structural beams;
Conference_Titel :
Frequency Control Symposium, 1993. 47th., Proceedings of the 1993 IEEE International
Conference_Location :
Salt Lake City, UT
Print_ISBN :
0-7803-0905-7
DOI :
10.1109/FREQ.1993.367377