Ates, D.Cakmak, A.O.Colak, E.Zhao, R.Soukoulis, C.M.Özbay, Ekmel2016-02-082016-02-08201010944087http://hdl.handle.net/11693/22431We 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 λ/31xλ/12 (width x 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. © 2010 Optical Society of America.EnglishComputer simulationNumerical analysisOptical resonatorsEnhancement factorExtraordinary transmissionHigh transmissionNumerical resultsNumerical simulationPhysical limitationsSplit ring resonatorSubwavelength aperturesTransmission enhancementWave transmissionarticleequipmentequipment designinstrumentationlightmicrowave radiationoptical instrumentationradiation scatteringrefractometrytransducerEquipment DesignEquipment Failure AnalysisLightMicrowavesOptical DevicesRefractometryScattering, RadiationTransducersArticle10.1364/OE.18.003952