Spatial and temporal characterization of a Bessel beam produced using a conical mirror

We experimentally analyze a Bessel beam produced with a conical mirror, paying particular attention to its superluminal and diffraction-free properties. We spatially characterized the beam in the radial and on-axis dimensions, and verified that the central peak does not spread over a propagation dis...

Full description

Saved in:
Bibliographic Details
Published in:arXiv.org 2008-12
Main Authors: Kuntz, K B, Braverman, B, Youn, S H, Lobino, M, Pessina, E M, Lvovsky, A I
Format: Article
Language:English
Subjects:
Beams (radiation)
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We experimentally analyze a Bessel beam produced with a conical mirror, paying particular attention to its superluminal and diffraction-free properties. We spatially characterized the beam in the radial and on-axis dimensions, and verified that the central peak does not spread over a propagation distance of 73 cm. In addition, we measured the superluminal phase and group velocities of the beam in free space. Both spatial and temporal measurements show good agreement with the theoretical predictions.
ISSN:2331-8422
DOI:10.48550/arxiv.0812.2514