Resonant tunneling of electromagnetic waves through polariton gaps

Details Resonant tunneling of electromagnetic waves through polariton gaps Resonant tunneling of electromagnetic waves through polariton gaps

1997-11-25

arxiv.org/abs/cond-mat/9711268v2

Phys. Rev. E 1998, V. 57, p. 7254

Physics

Condensed Matter

8 pages, 5 figures

Scientific paper

10.1103/PhysRevE.57.7254

We consider resonant tunneling of electromagnetic waves through an optical barrier formed by dielectric layers with the frequency dispersion of their dielectric permiability. The frequency region between lower and upper polariton branches in these materials presents a stop band for electromagnetic waves. We show that resonance tunneling through this kind of barriers is qualitatevely different from tunneling through other kind of optical barriers as well as from quantum mechanic tunneling through a rectangular barrier. We find that the width of the resonance maxima of the transmission coeffcient tends to zero as frequency approach the lower boundary of the stop band in a very sharp non-analytical way. Resonance transmission peaks give rise to new photonic bands inside the stop band if one considers periodical array of the layers.

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