Observation of superluminal wave-front propagation at the shadow area behind an opaque disk
Optics Letters, Vol. 32, Issue 13, pp. 1830-1832 (2007)
http://dx.doi.org/10.1364/OL.32.001830
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Abstract
We demonstrate in theory and experiment superluminal properties of optical field propagation in the shadow area behind an opaque disk (Poisson’s spot). The wave front of the field in the shadow zone is initially delayed with respect to the unperturbed field. This phase shift gradually diminishes along the optical path and therefore ensures variation of the phase velocity of the field at the axis. A resulting excess of about
© 2007 Optical Society of America
OCIS Codes
(000.2700) General : General science
(050.5080) Diffraction and gratings : Phase shift
ToC Category:
Diffraction and Gratings
History
Original Manuscript: April 2, 2007
Revised Manuscript: April 24, 2007
Manuscript Accepted: April 24, 2007
Published: June 20, 2007
Citation
M. Vasnetsov, V. Pas'ko, A. Khoroshun, V. Slyusar, and M. Soskin, "Observation of superluminal wave-front propagation at the shadow area behind an opaque disk," Opt. Lett. 32, 1830-1832 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-13-1830
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