The Effect of Geometry on the Quality Factor of Resonance Peaks in Asymmetric Nano-Antennas at Mid-Infrared Wavelengths

Mbomson, I. G., McMeekin, S. G., De La Rue, R. and Johnson, N. P. (2015) The Effect of Geometry on the Quality Factor of Resonance Peaks in Asymmetric Nano-Antennas at Mid-Infrared Wavelengths. Metamaterials X, Prague, Czech Republic, 13 Apr 2015. 95020L. (doi: 10.1117/12.2181424)

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.

• Item Type: Conference or Workshop Item
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Johnson, Dr Nigel and De La Rue, Professor Richard
• Authors: Mbomson, I. G., McMeekin, S. G., De La Rue, R., and Johnson, N. P.
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• ISSN: 0277-786X