Vacuum ultraviolet thin films 1: Optical constants of BaF_2, CaF_2, LaF_3, MgF_2, Al_2O_3, HfO_2, and SiO_2 thin films
- 1 October 1990
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 29 (28) , 4284-4292
- https://doi.org/10.1364/ao.29.004284
Abstract
The optical constants of MgF2 (bulk) and BaF2, CaF2, LaF3, MgF2, Al2O3, HfO2, and SiO2 films deposited on MgF2 substrates are determined from photometric measurements through an iteration process of matching calculated and measured values of the reflectance and transmittance in the 120–230-nm vacuum ultraviolet wavelength region. The potential use of the listed fluorides and oxides as vacuum ultraviolet coating materials is discussed in part 2 of this paper.Keywords
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