Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1680947 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2012 | 4 Pages |
Abstract
This study discusses the effect of a MeV ion implantation and Au metal cluster formation into LiNbO3 on the complex dielectric function using a spectrum-fitting analysis. LiNbO3 substrates were implanted with 3.1 MeV Au ions at a fluence of 1Ã1016cm-2, subsequently annealed in air at 800 °C for 1 h. Before and after the annealing treatment, the optical spectra were measured in two ranges: from 40 to 700 cmâ1 and from 5000 to 40000 cmâ1. For the spectrum-fitting analysis, the optical models: Brendel model for 40 to 700 cmâ1, and OJL model for 5000 to 40000 cmâ1 were assumed. These models well explained the spectra of the ion-implanted LiNbO3. Consequently the analysis demonstrated the effect of the ion implantation and Au cluster formation on the dielectric function with the phonon polarisation, electric polarisation and surface plasmon resonance, besides the thickness of the ion implanted layer to be 910 nm and the volume fraction of embedded Au clusters in the layer to be 0.73%.
Related Topics
Physical Sciences and Engineering
Materials Science
Surfaces, Coatings and Films
Authors
Hisato Ogiso, Shizuka Nakano,