ABC-Theory of an Exciton-Polariton in a Slab

概要

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Based on the analytic model of exciton wave function by D'Andrea and Del Sole,which contains an evanescent wave component exp [ -PZJ near surfaces, thepolarizability z(R, R'; co) of a stab (thickness d) has been evaluated with an accuracyof neglecting terms of order 0(exp [ -PdJ). The effect of size quantization has beenproperly considered. The solution of Maxwell equation for this stab gives the field asa superposition of bulk-like waves and surface localized amplitudes, together withABC (Additional Boundary Condition) for the coefficients of superposition. Withthis result, the validity of previous treatment of the same model by Cho and Kawata(CK) with a less accurate approximation has been checked, and it is shown that the op-tical spectra calculated by the final version of CK's ABC give an excellent agreementwith those by the present theory in its validity region, i.e., for the values of d outsidethe quantum well regime.
社団法人日本物理学会の論文
1990-02-15