Finite-Element Simulations of Light Propagation through Circular Subwavelength Apertures

Details Finite-Element Simulations of Light Propagation through Circular Subwavelength Apertures Finite-Element Simulations of Light Propagation through Circular Subwavelength Apertures

2009-05-27

arxiv.org/abs/0905.4376v1

Proc. SPIE 7366 (2009) 736621, (Photonic Materials, Devices, and Applications III, Ali Serpenguzel, Ed.)

Physics

Optics

Scientific paper

10.1117/12.822828

Light transmission through circular subwavelength apertures in metallic films with surrounding nanostructures is investigated numerically. Numerical results are obtained with a frequency-domain finite-element method. Convergence of the obtained observables to very low levels of numerical error is demonstrated. Very good agreement to experimental results from the literature is reached, and the utility of the method is demonstrated in the investigation of the influence of geometrical parameters on enhanced transmission through the apertures.

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