Realistic reflectance spectrum of thin films covering a transparent optically thick substrate
Abstract
A spectrophotometric strategy is presented and discussed for calculating realistically the reflectance spectrum of an absorbing film deposited over a thick transparent or semi-transparent substrate. The developed route exploits simple mathematics, has wide range of applicability (high-to-weak absorption regions and thick-to-ultrathin films), rules out numerical and curve-fitting procedures as well as model-functions, inherently accounts for the non-measurable contribution of the film-substrate interface as well as substrate backside, and describes the film reflectance spectrum as determined by the experimental situation (deposition approach and parameters). The reliability of the method is tested on films of a well-known material (indium tin oxide) by deliberately changing film thickness and structural quality through doping. Results are found consistent with usual information yielded by reflectance, its inherent relationship with scattering processes and contributions to the measured total reflectance.
Autore Pugliese
Tutti gli autori
-
M. Cesaria , A. P. Caricato , M. Martino
Titolo volume/Rivista
APPLIED PHYSICS LETTERS
Anno di pubblicazione
2014
ISSN
0003-6951
ISBN
Non Disponibile
Numero di citazioni Wos
2
Ultimo Aggiornamento Citazioni
28/04/2018
Numero di citazioni Scopus
2
Ultimo Aggiornamento Citazioni
22/04/2018
Settori ERC
Non Disponibile
Codici ASJC
Non Disponibile
Condividi questo sito sui social