Extraordinary transmission from high-gain nanoaperture antennas

Edward C. Kinzel, Purdue University
Pornsak Srisungsitthisunti, Purdue University
Yan Li, Purdue University - Main Campus
Arvind Raman, Birck Nanotechnology Center, School of Materials Engineering, Purdue University
Xianfan Xu, Birck Nanotechnology Center, School of Materials Engineering, Purdue University

Date of this Version



Appl. Phys. Lett. 96, 211116 (2010)

This document has been peer-reviewed.



Copyright (2010) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Appl. Phys. Lett. 96, 211116 (2010) and may be found at http://dx.doi.org/10.1063/1.3436726. The following article has been submitted to/accepted by Applied Physics Letters. Copyright (2010) Edward C. Kinzel, Pornsak Srisungsitthisunti, Yan Li, Arvind Raman, and Xianfan Xu. This article is distributed under a Creative Commons Attribution 3.0 Unported License.


This letter describes a bowtie nanoaperture antenna for coupling light to a subdiffraction limited near-field spot (<λ/8). The gain of the antenna is increased using a concentric grating structure to coherently diffract normally incident light toward the aperture. We experimentally demonstrate that the addition of the grating structure enhances the far-field transmission through the aperture by 6.9 times while the intensity at the near-field is increased more than 15 times. The nanoantenna is useful for applications including nanolithography and data storage.


Engineering | Nanoscience and Nanotechnology