Evaluation of the second-order Doppler shift in the Mg frequency standard

Author

Bava, Elio ; Novero, Carlo ; Godone, Aldo

Author_Institution

Dipartimento di Elettronica e Inf., Politecnico di Milano, Italy

Volume

43

Issue

3

fYear

1994

fDate

6/1/1994 12:00:00 AM

Firstpage

426

Lastpage

429

Abstract

We report in this paper the first evaluation of the second-order Doppler shift in the Mg frequency standard. Three methods are considered: direct theoretical computation, Fourier analysis of the experimental Ramsey curve, and Fourier analysis of the discrimination curve. The results obtained are compared in a practical experimental case and turn out in satisfactory agreement, allowing a good confidence on the determination of the shift at the accuracy level of ±3×10^-13. The considerations reported in this paper may be of general interest for frequency standards based on atomic or molecular beams with transverse dimensions much larger than the transition wavelength

Keywords

Doppler effect; Fourier analysis; atomic beams; frequency measurement; magnesium; measurement standards; microwave measurement; spectral line shift; Fourier analysis; Mg; Mg frequency standard; atomic beams; direct theoretical computation; discrimination curve; experimental Ramsey curve; molecular beams; second-order Doppler shift; submillimeter standard; transverse dimensions; Atomic beams; Atomic measurements; Doppler effect; Doppler shift; Metastasis; Microwave devices; Optical modulation; Optical resonators; RF signals; Radio frequency;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.293462

Filename

293462