SPECTROSCOPY OF PARTIALLY COHERENT FIELDS AT GEOMETRICAL-IMAGE PLANE AND FOURIER-TRANSFORM PLANE OF A LENS

Citation
Hc. Kandpal et al., SPECTROSCOPY OF PARTIALLY COHERENT FIELDS AT GEOMETRICAL-IMAGE PLANE AND FOURIER-TRANSFORM PLANE OF A LENS, Optics communications, 149(1-3), 1998, pp. 1-7
Citations number
19
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Optics
Journal title
ISSN journal
0030-4018
Volume
149
Issue
1-3
Year of publication
1998
Pages
1 - 7
Database
ISI
SICI code
0030-4018(1998)149:1-3<1:SOPCFA>2.0.ZU;2-B
Abstract
An experimental study of the spectra of a partially coherent field, pr opagating beyond an optical system (a lens), reveals that no spectral shift takes place on the geometrical-image plane, while large blue shi ft occurs at the back focal plane of the optical system for on-axis po ints of observation. Different light sources taken for the study are ( i) partially coherent fields produced by a multimode laser and (ii) a quasi-homogeneous source with different degrees of spatial coherence. These results are consistent with the theory and might find applicatio ns in metrology. (C) 1998 Elsevier Science B.V.