Browsing by Author "Cakmak, O.A."

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    Enhanced transmission through sub-wavelength apertures by using metamaterials
    (World Scientific Publishing Co., 2011) Bilotti, F.; Scorrano, L.; Alici, K. B.; Aydin, K.; Cakmak, O.A.; Özbay, Ekmel; Vegni, L.
    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. © 2011 by World Scientific Publishing Co. Pte. Ltd. All rights reserved.