Terahertz near-field enhancement in narrow rectangular apertures on metal film.

Abstract

We report huge field accumulations in rectangular aperture arrays on thin metal film by using shape resonance in THz frequency region. A huge far-field transmission enhancement is observed in samples of various widths ranging from 10 mum to 1.8 mum which correspond to only an order of lambda/100. Theoretical calculations based on vector diffraction theory… (More)

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@article{Park2009TerahertzNE, title={Terahertz near-field enhancement in narrow rectangular apertures on metal film.}, author={D. J. Park and S. B. Choi and Y. H. Ahn and Fabian Rotermund and I. B. Sohn and Chul Hyung Kang and M. S. Jeong and D. S. Kim}, journal={Optics express}, year={2009}, volume={17 15}, pages={12493-501} }