Title :
Transient Near Field Analysis of Optical Modes in Sub-wavelength Arrays
Author :
Cinosi, N. ; Walker, S.P. ; Bluck, M.J.
Author_Institution :
Imperial Coll., London
Abstract :
The transmission of light through arrays of sub-wavelength circular apertures is studied by solving Maxwell´s equation using fast integral equation methods in the time domain. The various types of transmission, generated by the interaction of adjacent holes and/or intra-hole resonance are investigated and their dependence upon the geometrical parameters demonstrated. A perfect conductor model is employed, indicating that ´surface plasmon´ effects are not required to explain the transmission, which is rather a consequence of the interaction of the wave field with the geometry.
Keywords :
Maxwell equations; integral equations; Maxwell equation; integral equation methods; intrahole resonance; optical modes; subwavelength arrays; subwavelength circular apertures; surface plasmon effects; transient near field analysis; Apertures; Conductors; Integral equations; Maxwell equations; Optical arrays; Optical surface waves; Resonance; Solid modeling; Surface waves; Transient analysis; apertures; diffraction; electromagnetic scattering; periodic structures;
Conference_Titel :
Computational Electromagnetics in Time-Domain, 2007. CEM-TD 2007. Workshop on
Conference_Location :
Perugia
Print_ISBN :
978-1-4244-1170-2
Electronic_ISBN :
978-1-4244-1170-2
DOI :
10.1109/CEMTD.2007.4373536
