title: Scattering of light into silicon by spherical and hemispherical silver nanoparticles.
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.
authors.affiliation: Department of Materials, Imperial College London, London SW7 2AZ, UK. acenteno@imperial.ac.uk
authors.forename: Anthony
authors.initials: A
authors.lastname: Centeno
authors.forename: Jonathan
authors.initials: J
authors.lastname: Breeze
authors.forename: Badar
authors.initials: B
authors.lastname: Ahmed
authors.forename: Hari
authors.initials: H
authors.lastname: Reehal
authors.forename: Neil
authors.initials: N
authors.lastname: Alford