X-wave bullets with negative group velocity in vacuum.

6533b824fe1ef96bd1280a9f

RESEARCH PRODUCT

X-wave bullets with negative group velocity in vacuum.

Miguel A. Porras Carlos J. Zapata-rodríguez

subject

Physics business.industry Wave propagation Signal Physics::History of Physics Atomic and Molecular Physics and Optics Optics Bessel beam Physics::Accelerator Physics Group velocity X-wave Phase velocity business Refractive index Beam (structure)

description

Propagation-invariant, X waves with negative group velocity are reported. Beam aperturing allows for a comprehensive analysis concerning the causality of the optical signal and forerunner formation.

year	journal	country	edition	language
2006-11-09	Optics letters

10.1364/ol.31.003532 https://pubmed.ncbi.nlm.nih.gov/17099774

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