Title

Spectral anomalies at wave-front dislocations

Authors

Authors

G. Popescu;A. Dogariu

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

Phys. Rev. Lett.

Keywords

Physics, Multidisciplinary

Abstract

In a recent Letter, Gbur, Visser, and Wolf [Phys. Rev. Lett. 88, 013901 (2002)] predict that remarkable spectral changes can take place in the neighborhood of phase singularities of a diffracted focused wave. We report here the experimental observation of this anomalous spectral behavior and show that this is a general characteristic of optical vortices. Using a high-resolution interferometric technique, we are able to measure directly both the spectral intensity distribution and the spectral phase at the singular points of optical waves.

Journal Title

Physical Review Letters

Volume

88

Issue/Number

18

Publication Date

1-1-2002

Document Type

Article

Language

English

First Page

4

WOS Identifier

WOS:000175192100016

ISSN

0031-9007

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