Validity domain and limitation of non-retarded Green's tensor for electromagnetic scattering at surfaces

This work gives a detailed derivation of the non-retarded dyadic Green's tensor associated with surfaces in the quasistatic approximation. The derivation is made from a rigorous model where the dyadic is expressed as Sommerfeld integrals. We then assess the domain where this approximation can be used for scattering calculations on surfaces by comparing rigorous and non-retarded solutions. Implications of this work for scattering calculations in near-field optics are finally discussed. (C) 2000 Elsevier Science B.V. All rights reserved.


Published in:
Optics Communications, 184, 37-47
Year:
2000
Publisher:
Elsevier
ISSN:
0030-4018
Keywords:
Laboratories:




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