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Guided-mode resonance and field enhancement in semiconductor nanorod arrays

Published online by Cambridge University Press:  21 April 2015

W. X. Yu  and
Y. Yi
W. X. Yu
Affiliation:
University of Michigan, MI
Y. Yi*
Affiliation:
University of Michigan, MI Massachusetts Institute of Technology, Cambridge, MA
*
*e-mail: yys@alum.mit.edu
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Abstract

Guided mode resonance was numerically demonstrated in the tapered silicon nitride nanorod arrays on glass substrate. Finite difference time domain technique was employed to investigate the detailed light-matter interaction dynamics and the generation of resonance at femtoseconds. Enhanced electromagnetic (EM) field intensity with enhancement factor of 200∼250 could be achieved. This highly concentrated electromagnetic field could be extended to the nanorod array tips and substrate for higher order resonance modes, which allows future application of this transverse propagating field in optical signal amplification, like fluorescence or Raman enhancement.

Keywords

optoelectronicnanoscalesemiconducting
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1728: Symposium L – Optical Metamaterials and Novel Optical Phenomena Based on Nanofabricated Structures , 2015 , mrsf14-1728-l03-17
Copyright
Copyright © Materials Research Society 2015 

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