Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.14/169466
42 Visitors45 Hits0 Downloads
Radiation diagrams from a nanohole in the momentum basis
International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim (August 28 - September 1, 2011 : Sydney)
Proceedings of the International Quantum Electronics Conference and Conference on Lasers and Electro-Optics (Pacific Rim IQEC/CLEO 2011) incorporating ACOLS and ACOFT, Sydney, New South Wales, Australia, 28 August - 01 September 2011, p.1491-1493
We present the complete radiation diagram of the field scattered by a nanohole in a metallic film under Gaussian illumination. A modal expansion of the Green's Tensor for a planar multilayered structure allows us to semi-analytically obtain the radiation diagram of the field scattered by an arbitrary dielectric perturbation present in the structure. Given that the electrical field induced in the perturbation by the excitation input is available, the expansion coefficients of the scattered field in the eigenfunctions of the structure's vector wave equation are derived. In the two semi-infinite bottom and top media, those eigenfunctions coincide with the planewave basis vectors, including both propagating and evanescent components.