Premium
Surface polariton effects in spontaneous Emission II. Effects of spatial dispersion
Author(s) -
Agarwal G. S.,
Vollmer H. D.
Publication year - 1978
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220850133
Subject(s) - polariton , spatial dispersion , surface plasmon polariton , dispersion (optics) , excited state , dielectric , atom (system on chip) , surface plasmon , materials science , molecular physics , surface (topology) , radiation , atomic physics , condensed matter physics , optics , physics , plasmon , optoelectronics , geometry , mathematics , computer science , embedded system
The radiation characteristics of atoms or molecules placed close to the dielectric surface are studied with full account of the spatial dispersion of the dielectric. Both the cases of plasmon polariton and the exciton polaritons are treated. The appropriate response functions are calculated and used to derive an analytic expression for the widtn of the excited state. The numerical results show that spatial dispersion reduces considerably the width from that one in the absence of spatial dispersion. It is found that spatial dispersion effects become more pronounced as the distance of the atom from the surface decreases.