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Updated: Aug 4, 2026

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
Published on: November 30, 2012
Superluminal X-shaped beams propagating without distortion along a coaxial guide
Michel Zamboni-Rached1, K Z Nóbrega, Erasmo Recami
1DMO-FEEC, State University at Campinas, SP, Brazil. giz.r@uol.com.br
Abstract:
In a previous paper we showed that localized superluminal solutions to the Maxwell equations exist, which propagate down (nonevanescence) regions of a metallic cylindrical waveguide. In this paper we construct analogous nondispersive waves propagating along coaxial cables. Such new solutions, in general, consist in trains of (undistorted) superluminal "X-shaped" pulses. Particular attention is paid to the construction of finite total energy solutions. Any results of this kind may find application in the other fields in which an essential role is played by a wave equation (like acoustics, geophysics, etc.).
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