info:eu-repo/semantics/article
Polarimetric Characterization of Bismuth Thin Films Deposited by Laser Ablation
Autor
RAFAEL ESPINOSA LUNA
EDGAR ENRIQUE CAMPS CARVAJAL
DAGOBERTO CARDONA RAMIREZ
ELDER DE LA ROSA
Institución
Resumen
A Mueller–Stokes analysis is applied to pure bismuth thin film samples prepared by the laser ablation technique by using a polarimeter with a 632.8 nm continuum wavelength laser. The complex refractive index is determined in the range of 250–1100 nm. Results from the Mueller matrix show the high sensitivity of diattenuation and polarizance parameters as a function of the sample thickness and the
incidence angle, except at the pseudo-Brewster angle, where they exhibit the same value. Results show that the knowledge of the polarimetric response, with appropriate incident polarization states, could be used to design photonic Bi-based devices for several applications. Polarization dependence is the result of changes on the surface morphology as a result of the small value of the skin depth.