Simulation and micro-fabrication of optically switchable split ring resonators |
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| Authors: | TF Gundogdu Mutlu Gkkavas Kaan Güven M Kafesaki CM Soukoulis Ekmel Ozbay |
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| Institution: | aInstitute of Electronic Structure and Laser, Foundation for Research and Technology, Hellas and Department of Materials Science and Technology, University of Crete, Greece;bNanotechnology Research Center, Department of Physics, Department of Electrical and Electronics Engineering, Bilkent University, Bilkent, Ankara 06800, Turkey;cAmes Laboratory-USDOE and Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, USA |
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| Abstract: | The effect of conductivity variation as a proposed method for the investigation of photoconductive switching properties of split ring resonators (SRRs) is simulated. Three different systems that are applicable under certain fabrication and/or optical excitation conditions are described. The simulated transmission spectrum indicates that for a large range of dark conductivity values, complete switching of the SRR resonance is possible. One of the simulated systems, involving split ring resonators on Si substrate, was fabricated and characterized. The transmission spectrum of that system was measured, with the Si in its high-resistivity state, and a −60 dB dip between 108 and 115 GHz, due to SRRs magnetic resonance, was observed. |
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| Keywords: | Left handed materials Split ring resonators Photoconductive Simulation |
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