Spatial and temporal characterization of a Bessel beam produced using a conical mirror
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Braverman, B
Youn, SH
Lobino, M
Pessina, EM
Lvovsky, AI
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Abstract
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.
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Physical Review A
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79
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4
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© 2009 American Physical Society. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
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Subject
Mathematical sciences
Physical sciences
Classical and physical optics
Chemical sciences