Optical input impedance of nanostrip antennas

Ivan Wang; Ya-ping Du

doi:10.1117/1.OE.51.5.054002

4 May 2012 Optical input impedance of nanostrip antennas

Ivan Wang, Ya-ping Du

Author Affiliations +

Optical Engineering, Vol. 51, Issue 5, 054002 (May 2012). https://doi.org/10.1117/1.OE.51.5.054002

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.

Citation Download Citation

Ivan Wang and Ya-ping Du "Optical input impedance of nanostrip antennas," Optical Engineering 51(5), 054002 (4 May 2012). https://doi.org/10.1117/1.OE.51.5.054002

Published: 4 May 2012

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available