3 July 2020 Resonant enhancement of evanescent waves with graphene and double-negative materials in the visible regime
Darya Azami, Sarkew S. Abdulkareem, Abdollah Hassanzadeh
Author Affiliations +
Abstract

We theoretically investigate the enhancement of the evanescent waves near the surface of a prism coated with several layers of metals, graphene, and double negative materials. The thicknesses of the metals and double negative material films along with the number of graphene layers are optimized to achieve the highest enhancement factor. We show that the intensity of the evanescent wave in the proposed resonance structure is about 109 times higher than that of a bare prism. A comparison between our results and those reported in the literature indicates a 104 times amplification of the evanescent field intensities. This amplification can open a new window to manipulate attached biological cells, design perfect atom mirrors, and apply an effective force on nano- and microparticles for the purpose of manipulation and trapping. The effect of the optimization of the involved parameters on the results shows the importance of these theoretical and simulation results, which leads to the reduction in time and costs of experimental works.

© 2020 Society of Photo-Optical Instrumentation Engineers (SPIE) 1934-2608/2020/$28.00 © 2020 SPIE
Darya Azami, Sarkew S. Abdulkareem, and Abdollah Hassanzadeh "Resonant enhancement of evanescent waves with graphene and double-negative materials in the visible regime," Journal of Nanophotonics 14(3), 036003 (3 July 2020). https://doi.org/10.1117/1.JNP.14.036003
Received: 24 February 2020; Accepted: 24 June 2020; Published: 3 July 2020
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Cited by 2 scholarly publications.
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KEYWORDS
Graphene

Prisms

Metals

Multilayers

Resonance enhancement

Refractive index

Transmittance

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