Journal
PHYSICAL REVIEW A
Volume 79, Issue 4, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.79.043802
Keywords
laser beams; laser mirrors; laser variables measurement; light interferometry; spatiotemporal phenomena
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Funding
- NSERC
- CFI
- AIF
- Quantum Works
- CIFAR
- National Research Foundation of Korea [2006-013-C00111, 과06B1110] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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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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