Aydin, K.Cakmak, A. O.Sahin, L.Li, Z.Bilotti, F.Vegni, L.Özbay, Ekmel2016-02-082016-02-0820090031-9007http://hdl.handle.net/11693/22857We report the enhanced transmission of electromagnetic waves through a single subwavelength aperture by using a split-ring resonator (SRR) at microwave frequencies. By placing a single SRR at the near field of the aperture, strongly localized electromagnetic fields are effectively coupled to the aperture with a radius that is 20 times smaller than the resonance wavelength (r/λ=0.05). We obtained 740-fold transmission enhancement by exciting the electric resonance of SRR. A different coupling mechanism, through the magnetic resonance of SRR, is also verified to lead to enhanced transmission.EnglishArticle10.1103/PhysRevLett.102.0139041079-7114