Title:
Transmission enhancement through deep subwavelength apertures using connected split ring resonators
Author(s):
Damla Ates, Atilla Ozgur Cakmak, Evrim Colak, Rongkuo Zhao C. M. Soukoulis, Ekmel Ozbay
Source:
Optical Society of America
Vol./Issue/Date:
Year:
2010
Page(s):
Keywords:
Abstract:
We report astonishingly high transmission enhancement factors
through a subwavelength aperture at microwave frequencies by placing connected split ring resonators in the vicinity of the aperture. We carried out numerical simulations that are consistent with our experimental conclusions. We experimentally show higher than 70,000-fold extraordinary transmission through a deep subwavelength aperture with an electrical size of ?/31×?/12 (width × length), in terms of the operational wavelength. We discuss the physical origins of the phenomenon. Our numerical results predict that even more improvements of the enhancement factors are
attainable. Theoretically, the approach opens up the possibility for
achieving very large enhancement factors by overcoming the physical
limitations and thereby minimizes the dependence on the aperture
geometries
Document:
Reference Id:
605
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