Scattering of light into silicon by spherical and hemispherical silver nanoparticles

Centeno, A. , Breeze, J., Ahmed, B., Reehal, H. and Alford, N. (2010) Scattering of light into silicon by spherical and hemispherical silver nanoparticles. Optics Letters, 35(1), pp. 76-78. (doi: 10.1364/OL.35.000076) (PMID:20664678)

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Abstract

The interaction of light with noble metal nanoparticles deposited onto the top surface of a semiconductor has been investigated using the finite-difference time-domain method. The scattering is calculated for spherical and hemispherical silver nanoparticles placed in a periodic two-dimensional array on the upper surface of a semi-infinite silicon substrate. The results show that the contact area between hemispherical particles and the silicon significantly reduces the forward scattering. The use of an oxide buffer layer to separate the particle from the semiconductor is investigated and is seen to be important if the forward scattering of light is to be enhanced.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Centeno, Dr Anthony
Authors: Centeno, A., Breeze, J., Ahmed, B., Reehal, H., and Alford, N.
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
Journal Name:Optics Letters
Publisher:Optical Society of America
ISSN:0146-9592
ISSN (Online):1539-4794
Published Online:31 December 2009
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