Linear properties of finite photonic band gap structures: Group velocity, energy velocity, and effective dispersion relations

Giuseppe D’Aguanno

doi:10.1063/1.1372732

Linear properties of finite photonic band gap structures: Group velocity, energy velocity, and effective dispersion relations

Giuseppe D’Aguanno

https://doi.org/10.1063/1.1372732

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Publication Date: Jan 1, 2001

Affiliation: United States Aviation and Missile Life Cycle Management Command, United States Army, Sapienza University of Rome

#Finite Photonic Band Gap Structures #Group Velocities + Show 8 more

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Abstract

A re-evaluation of the notions of group (Vg) and energy (Ve) velocities in finite photonic band gap structures leads us to conclude that the two velocities are related by Ve=|t|2Vg and that Ve=Vg only at each peak of transmission (|t|2=1). This result impacts our understanding of the effective dispersion properties of layered materials, and can be used to better understand a wide range of phenomena including the question of superluminal tunneling times.

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