Authors

P. M. Krenz; R. L. Olmon; B. A. Lail; M. B. Raschke;G. D. Boreman

Comments

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Abbreviated Journal Title

Opt. Express

Keywords

NANOANTENNAS; FABRICATION; EXCITATION; SCATTERING; NANOWIRES; ANTENNA; MODES; Optics

Abstract

Impedance matched and low loss transmission lines are essential for optimal energy delivery through an integrated optical or plasmonic nanocircuit. A novel method for the measurement of the attenuation and propagation constants of an antenna-coupled coplanar strip (CPS) transmission line is demonstrated at 28.3 THz using scattering-type scanning near-field optical microscopy. Reflection of the propagating optical wave upon an open-circuit or short-circuit load at the terminal of the CPS provides a standing voltage wave, which is mapped through the associated surface-normal E-z electric near-field component at the metal-air interface. By fitting the analytical standing wave expression to the near-field data, the transmission line properties are determined. Full-wave models and measured results are presented and are in excellent agreement.

Journal Title

Optics Express

Volume

18

Issue/Number

21

Publication Date

1-1-2010

Document Type

Article

Language

English

First Page

21678

Last Page

21686

WOS Identifier

WOS:000283686500020

ISSN

1094-4087

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