by Ovidio Peña-Rodríguez, Magdalena Caro, Antonio Rivera, José Olivares, José Manuel Perlado and Alfredo Caro
Abstract:
Optical properties of AgxAu1-x alloys were obtained experimentally using spectroscopic ellipsometry measurements on thin films fabricated by electron beam evaporation. Thin film thicknesses varied between 170 and 330 nm, making size effects negligible. Values of the complex refractive index of the pure metals were in good agreement with literature reports. The optical data set reported in this work can accurately reproduce experimental results. This is very important because there are not reliable and systematic optical constants for the alloys. Moreover, we show that the weighted average of the refractive indices of the pure metals fails to represent those of the alloys, not only in the region near the onset for interband transitions but also in the near-IR region.
Reference:
Ovidio Peña-Rodríguez, Magdalena Caro, Antonio Rivera, José Olivares, José Manuel Perlado and Alfredo Caro, “Optical properties of Au-Ag alloys: An ellipsometric study”, Optical Materials Express, vol. 4, no. 2, pp. 403–410.
Bibtex Entry:
@article{pena-rodriguez_optical_2014,
title = {Optical properties of {Au}-{Ag} alloys: {An} ellipsometric study},
volume = {4},
copyright = {© 2014 Optical Society of America},
issn = {2159-3930},
shorttitle = {Optical properties of {Au}-{Ag} alloys},
url = {https://www.osapublishing.org/abstract.cfm?uri=ome-4-2-403},
doi = {10.1364/OME.4.000403},
abstract = {Optical properties of AgxAu1-x alloys were obtained experimentally using spectroscopic ellipsometry measurements on thin films fabricated by electron beam evaporation. Thin film thicknesses varied between 170 and 330 nm, making size effects negligible. Values of the complex refractive index of the pure metals were in good agreement with literature reports. The optical data set reported in this work can accurately reproduce experimental results. This is very important because there are not reliable and systematic optical constants for the alloys. Moreover, we show that the weighted average of the refractive indices of the pure metals fails to represent those of the alloys, not only in the region near the onset for interband transitions but also in the near-IR region.},
language = {EN},
number = {2},
urldate = {2017-10-23},
journal = {Optical Materials Express},
author = {Peña-Rodríguez, Ovidio and Caro, Magdalena and Rivera, Antonio and Olivares, José and Perlado, José Manuel and Caro, Alfredo},
month = feb,
year = {2014},
keywords = {Thin films, Optical properties, Surface plasmons},
pages = {403--410},
file = {Full Text PDF:E:\cmam_papers\files\1286\Peña-Rodríguez et al. - 2014 - Optical properties of Au-Ag alloys An ellipsometr.pdf:application/pdf;Full Text PDF:E:\Usuarios\Administrator\Zotero\storage\ICNFC9HA\Peña-Rodríguez et al. - 2014 - Optical properties of Au-Ag alloys An ellipsometr.pdf:application/pdf;Snapshot:E:\cmam_papers\files\1287\abstract.html:text/html;Snapshot:E:\Usuarios\Administrator\Zotero\storage\AZZ5KRZT\abstract.html:text/html},
}