title: Effect of tin diffusion on the optical behavior of float glass in the soft-x-ray region.
abstract: The optical responses of two sides of float glass in the soft-x-ray region were studied at the Indus-1 synchrotron facility. To the best of our knowledge these are the first experimentally obtained optical data for both sides of float glass in the soft-x-ray region. Optical constants delta and beta were determined by use of angle-dependent reflectance techniques in the wavelength range 80-200 A. On the side of the glass that was tin indiffused, a significant difference in delta value from that of the non-tin-side surface was observed. The measured data were compared with Henke's tabulated value of SiO2. The surface roughness of float glass was separately determined by hard-x-ray reflectivity to minimize the number of fitting variables. The effect of a contamination layer on the determination of optical constants was avoided by an appropriate sample-cleaning method.
authors.affiliation: Synchrotron Utilization Division, Centre for Advanced Technology, Indore 452 013, India.
authors.forename: Mohammed H
authors.initials: MH
authors.lastname: Modi
authors.forename: Gyanendra S
authors.initials: GS
authors.lastname: Lodha
authors.forename: Kawal Jeet S
authors.initials: KJ
authors.lastname: Sawhney
authors.forename: Rajendra V
authors.initials: RV
authors.lastname: Nandedkar