Enhancement of optical transmission through planar nanoapertures in a metal film

Xianfan Xu; Eric X. Jin; Sreemanth M.V. Uppuluri

doi:10.1117/12.564559

8 October 2004 Enhancement of optical transmission through planar nanoapertures in a metal film

Xianfan Xu, Eric X. Jin, Sreemanth M.V. Uppuluri

Proceedings Volume 5515, Nanoengineering: Fabrication, Properties, Optics, and Devices; (2004) https://doi.org/10.1117/12.564559
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

The optical transmission mechanism through a ridge nano-aperture in a metal film is discussed based on the waveguide theory and FDTD computations. The transmission enhancement through ridge apertures is associated with the TE10 waveguide propagation mode. In terms of near and far field radiator, the ridge aperture can be represented as a combination of an oscillating electric dipole and two magnetic dipoles. The effects of localized surface plasmon (LSP) excited on the edges of ridge nano-apertures made in silver are discussed. The transmission enhancement and field concentration functions of ridge apertures are confirmed by contact lithography experiments.

Citation Download Citation

Xianfan Xu, Eric X. Jin, and Sreemanth M.V. Uppuluri "Enhancement of optical transmission through planar nanoapertures in a metal film", Proc. SPIE 5515, Nanoengineering: Fabrication, Properties, Optics, and Devices, (8 October 2004); https://doi.org/10.1117/12.564559

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