SPACE-FREQUENCY EQUIVALENCE PRINCIPLE IN A LABORATORY VERSION OF MICHELSONS STELLAR INTERFEROMETER

Citation
Hc. Kandpal et al., SPACE-FREQUENCY EQUIVALENCE PRINCIPLE IN A LABORATORY VERSION OF MICHELSONS STELLAR INTERFEROMETER, Optics communications, 132(5-6), 1996, pp. 503-510
Citations number
23
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Optics
Journal title
ISSN journal
0030-4018
Volume
132
Issue
5-6
Year of publication
1996
Pages
503 - 510
Database
ISI
SICI code
0030-4018(1996)132:5-6<503:SEPIAL>2.0.ZU;2-U
Abstract
Using the spectral interference law [Phys. Lett. A 157 (1991) 6], the degree of spectral coherence \mu(12)(omega)\ between the two sources f ormed over the planes of the light collecting mirrors of a laboratory version of Michelson's stellar interferometer is determined from the m easurement of the spectral changes produced on superimposition of radi ation from these two sources. The theoretically expected values of \mu (12)(omega)\ using the experimental parameters in the van Cittert-Zern ike theorem agree well with the experimentally calculated values of \m u(12)(omega)\ within experimental errors. A new interferometric equiva lence principle [Radio Sci. 26 (1991) 1239] is used to determine the a ngular size of the source from the zeros of \mu(12)(omega)\ in the fre quency scale. This new technique makes the determination of the angula r size of a source less time consuming and simpler than the convention al methods.