Electromagnetic wave propagation in periodic structures: Bloch wave solution of Maxwell's equations

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Electromagnetic wave propagation in periodic structures: Bloch wave solution of Maxwell's equations

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Title: Electromagnetic wave propagation in periodic structures: Bloch wave solution of Maxwell's equations
Author: Zhang, Ze; Satpathy, Sashi Sekhar, 1956-
Date: 1990-11-19
Publisher: American Physical Society
Citation: Phys. Rev. Lett. 65, 2650-2653 (1990)
Abstract: We examine the propagation of electromagnetic waves in periodic dielectric structures by solving the vector Maxwell equations with the plane-wave method. Contrary to experimental reports, as well as results of scalar-wave calculations, we do not find a true gap extending throughout the Brillouin zone in the fcc structure. However, there is a depletion in the photon density of states, seemingly a remnant of the Mie resonance, giving rise to a pseudogap in the spectrum that is quite strong for dielectric-sphere packing fraction β∼0.3-0.4. An effect analogous to the Borrmann effect in x-ray diffraction is predicted, where certain photon modes will propagate an anomalously long distance before getting absorbed.
URI: http://hdl.handle.net/10355/9543
ISSN: 0031-9007

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