Structure Dependence of Radiation-Matter Interaction in Arrays of Resonant Units(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)

概要

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Combining the two enhancement mechanisms of radiation-matter interaction, one in long wavelength regime (LWR) and the other via resonant Bragg reflection, we systematically studied the coupling strengths of various arrays of resonant units. As a general measure of the coupling strength, the radiative width of each resonance was calculated according to the first-principles theory of microscopic nonlocal response of matter. A numerical study was carried out for three resonant Bragg arrangements of (A) N atoms, (B) N chains of atoms, and (C) N planes of atoms. Different aspects of enhancement are clarified as the size-linear increase in LWR and its dimensionality dependence, the speed-up effect of decay, and the super-enhancement effect due to all these mechanisms in case (C) with its saturation behavior for large N.
社団法人日本物理学会の論文
2002-05-15