Dynamic pattern of finite-pulsed beams inside one-dimensional photonic band gap materials

Li Gang Wang, Shi Yao Zhu

Research output: Contribution to journalJournal articlepeer-review

4 Citations (Scopus)

Abstract

The dynamics of two-dimensional electromagnetic (EM) pulses through one-dimensional photonic crystals (1DPC) has been theoretically studied. Employing the time expectation integral over the Poynting vector as the arrival time, we show that the superluminal tunneling process of EM pulses is the propagation of the net forward-going Poynting vector through the 1DPC, and the Hartman effect is due to the saturation effect of the arrival time (smaller and smaller time accumulated) of the net forward energy flow caused by the interference effect of the forward and the backward field (from the interfaces between layers), which occurred in the region before the 1DPC and in the front part of the 1DPC.

Original languageEnglish
Article number195119
JournalPhysical Review B
Volume73
Issue number19
DOIs
Publication statusPublished - 2006

Scopus Subject Areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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