5 May 2015 The effect of geometry on the quality factor of resonance peaks in asymmetric nano-antennas at mid-infrared wavelengths
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Abstract
The effects of two different type of asymmetric nano-antenna that produce distinct resonance peaks were experimentally and numerically observed. At mid-infrared wavelengths broad resonances based upon various metamaterials structures have been previously reported. Here we show that introducing a crossbar on vertical asymmetric dipole nano-antenna can produce narrower resonance peaks than the dipole alone. Our approach to investigating different asymmetric nanoantenna structures yielded quality factor values more than twice the existing values reported within this region of the electromagnetic spectrum.
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Ifeoma G. Mbomson, Ifeoma G. Mbomson, Scott G. McMeekin, Scott G. McMeekin, Richard De La Rue, Richard De La Rue, Nigel P. Johnson, Nigel P. Johnson, } "The effect of geometry on the quality factor of resonance peaks in asymmetric nano-antennas at mid-infrared wavelengths", Proc. SPIE 9502, Metamaterials X, 95020L (5 May 2015); doi: 10.1117/12.2181424; https://doi.org/10.1117/12.2181424
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