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Journal of Nanotechnology
Volume 2010 (2010), Article ID 953212, 5 pages
Research Article

Design and Fabrication of 1 × 2 Nanophotonic Switch

1School of Engineering, Bar-Ilan University, Ramat-Gan 52900, Israel
2Physics Department, Jack and Pearl Resnick Institute of Advanced Technology, Bar-Ilan University, Ramat-Gan 52900, Israel

Received 25 August 2009; Accepted 5 January 2010

Academic Editor: Thomas Thundat

Copyright © 2010 Asaf Shahmoon et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We present the design and the fabrication of a novel 1 × 2 nanophotonic switch. The switch is a photonic T-junction in which a gold nano particle is being positioned in the junction using the tip of an atomic force microscope (AFM). The novelty of this 1 × 2 switch is related to its ability to control the direction of wave that propagates along a photonic structure. The selectivity of the direction is determined by a gold nanoparticle having dimension of a few tens of nanometer. This particle can be shifted. The shift of the gold nano particle can be achieved by applying voltage or by illuminating it with a light source. The shifts of the particle, inside the air gap, direct the input beam ones to the left output of the junction and once to its right output. Three types of simulations have been done in order to realize the photonic T-junction, and they are as follows: photonic crystal structures, waveguide made out of PMMA, and a silicon waveguide.