Abstract
In this chapter, the role of complex artificial structures in enhancing the power transmission through sub-wavelength apertures is discussed. Such devices are aimed at exciting highly localized resonances in order to increase the aperture equivalent magnetic and electric dipole moments. Some examples, based on epsilon-near-zero metamaterials (ENZ), frequency selective surfaces (FSSs) and split-ring resonators (SRRs) at microwaves, and silver nano-particle pairs at terahertz scale, are presented. Such structures may find applications in different fields, such as high-resolution spatial filters, ultra-diffractive imaging systems, high-capacity optical memories, enhanced light throughput tips for near-field scanning optical microscopes, etc.
Original language | English (US) |
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Title of host publication | Selected Topics in Photonic Crystals and Metamaterials |
Publisher | World Scientific Publishing Co. |
Pages | 453-477 |
Number of pages | 25 |
ISBN (Electronic) | 9789814355193 |
ISBN (Print) | 9814355186, 9789814355186 |
DOIs | |
State | Published - Jan 1 2011 |
ASJC Scopus subject areas
- General Biochemistry, Genetics and Molecular Biology
- General Engineering
- General Physics and Astronomy