Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/33988
Title: Optical input impedance of nanostrip antennas
Authors: Wang, I
Du, YP 
Keywords: Nanoantenna
Input impedance and optical resonance
Aluminum
Issue Date: 2012
Publisher: SPIE-International Society for Optical Engineering
Source: Optical engineering, 2012, v. 51, no. 5, e5415 How to cite?
Journal: Optical engineering 
Abstract: We conduct an investigation into optical nanoantennas in the form of a strip dipole made from aluminum. With the finite-difference time domain simulation both optical input impedance and radiation efficiency of nanostrip antennas are addressed. An equivalent circuit is presented as well for the nanostrip antennas at optical resonances. The optical input resistance can be adjusted by varying the geometric parameters of antenna strips. By changing both strip area and strip length simultaneously, optical input resistance can be adjusted for matching impedance with an external feeding or loading circuit. It is found that the optical radiation efficiency does not change significantly when the size of a nanostrip antenna varies moderately.
URI: http://hdl.handle.net/10397/33988
ISSN: 0091-3286
EISSN: 1560-2303
DOI: 10.1117/1.OE.51.5.054002
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