Volume 112, Number 5, December 2015
|Number of page(s)||4|
|Section||Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics|
|Published online||24 December 2015|
Enhancement of surface response with large wave vector resonances in plasmonic structures
1 Bartol Research Institute and Department of Physics and Astronomy, University of Delaware Newark, DE 19716, USA
2 State key Lab of Surface Physics, Department of Physics, Fudan University - Shanghai 200433, China
3 Key Laboratory of Micro and Nano Photonic structures (Ministry of Education), Fudan University - Shanghai, China
4 Shanghai Institute of Technical Physics - Shangai, China
Received: 13 August 2015
Accepted: 10 December 2015
We study the electromagnetic response on surfaces overlaid with a grating. By tailoring the interface material parameters and the grating thickness, we excite resonant states of large wave vectors that enabled the electric field intensity at the surface to be increased by more than two orders of magnitude than previous results. The physics behind this is discussed.
PACS: 42.79.Dj – Gratings / 42.79.-e – Optical elements, devices, and systems / 78.68.+m – Optical properties of surfaces
© EPLA, 2015
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