Title :
Measurements of the complex refractive index of Pd and Pt films in air and upon adsorption of H2 gas
Author :
Goddard, Lynford ; Yeen Wong, Kai ; Garg, Akash ; Behymer, Elaine ; Cole, Garrett ; Bond, Tiziana
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Illinois at Urbana-Champaign, Urbana, IL
Abstract :
We present complex refractive index measurements of Pd and Pt films from 700-1700 nm using variable angle spectroscopic ellipsometry. Refractive index changes upon H2 gas adsorption were determined by measuring normal incidence reflection and transmission.
Keywords :
adsorption; ellipsometry; extinction coefficients; gas sensors; hydrogen; infrared spectra; metallic thin films; palladium; platinum; reflectivity; refractive index; H2; Pd; Pt; complex refractive index measurements; extinction coefficient; gas adsorption; gas sensors; palladium thin film; platinum thin film; variable angle spectroscopic ellipsometry; wavelength 700 nm to 1700 nm; Ellipsometry; Gas detectors; Glass; Hydrogen; Optical films; Optical reflection; Optical refraction; Optical sensors; Optical variables control; Refractive index;
Conference_Titel :
IEEE Lasers and Electro-Optics Society, 2008. LEOS 2008. 21st Annual Meeting of the
Conference_Location :
Acapulco
Print_ISBN :
978-1-4244-1931-9
Electronic_ISBN :
978-1-4244-1932-6
DOI :
10.1109/LEOS.2008.4688745
