The Far Ultraviolet Reflectivities of Metallic Films
- 1 February 1942
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America
- Vol. 32 (2) , 98-102
- https://doi.org/10.1364/josa.32.000098
Abstract
The reflectivities of evaporated films of aluminum, copper, silver, and beryllium have been measured spectrographically in the region 1200-2200A before the films were exposed to air. Copper reflection was considerably higher before contamination by air than afterward; the other metals showed no effect. The pronounced minimum in beryllium reflectivity found by previous investigators did not occur here; it is believed that this minimum is due to a thin film of tungsten evaporated over the beryllium.Keywords
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