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Proceedings Paper

Efficient pattern modeling of plasmonic nanostructures probed by nanoscale near-field scanning microscope tips with different polarized outputs
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Paper Abstract

We develop a method based on the reciprocity and Green function to efficiently obtain the far-field pattern of dipole emitters around plasmonic nanostructures. Applying this method to air hole arrays fabricated on metal films, we reveal their plasmonic characteristics in the near-field scanning optical microscopy. Modeling scanning-probe tips as surface plasmon launchers, we clarify the orientation effect of their equivalent dipoles and also how these effective dipoles contribute to the excitation of different plasmonic modes, resulting in distinguishable characteristics in the far-field imaging. The outcomes of our calculations are validated with the experimental data from a high-resolution raster scanning nano-focusing plasmonic tip. Satisfactory agreements between the model and measurements are demonstrated.

Paper Details

Date Published: 21 February 2018
PDF: 8 pages
Proc. SPIE 10541, Photonic and Phononic Properties of Engineered Nanostructures VIII, 1054124 (21 February 2018); doi: 10.1117/12.2288321
Show Author Affiliations
Pi-Ju Cheng, Research Ctr. for Applied Sciences (Taiwan)
Ruei-Han Jiang, Research Ctr. for Applied Sciences (Taiwan)
National Tsing Hua Univ. (Taiwan)
Industrial Technology Research Institute (Taiwan)
Chi Chen, Research Ctr. for Applied Sciences (Taiwan)
Ta-Jen Yen, National Tsing Hua Univ. (Taiwan)
Shu-Wei Chang, Research Ctr. for Applied Sciences (Taiwan)

Published in SPIE Proceedings Vol. 10541:
Photonic and Phononic Properties of Engineered Nanostructures VIII
Ali Adibi; Shawn-Yu Lin; Axel Scherer, Editor(s)

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