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Updated: Aug 20, 2026
Fabrication and Operation of a Nano-Optical Conveyor Belt
Published on: August 26, 2015
Simulation of confined and enhanced optical near fields for a long narrow aperture in a pyramidal structure on a
Kazuo Tanaka1, Masahiro Tanaka
1Department of Electronics and Computer Engineering, Gifu University, 1-1 Yanagido, Gifu, Gifu 501-1193, Japan. tanaka@tnk.info.gifu-u.ac.jp
Abstract:
A new type of long narrow aperture in a pyramidal structure on a thick metallic screen is proposed, and optical wave scattering by this structure is simulated. This aperture structure provides high emission intensity and small spot size simultaneously through excitation of the surface plasmon polaritons on the sidewalls of the pyramidal structure. Scattering of optical waves by this structure in the thick metallic screen is solved numerically with a volume integral equation by generalized conjugate residual iteration and fast Fourier transformation. The basic characteristics of the near-field intensities of the aperture are investigated in detail.
