Reflectance measurements and optical constants in the extreme ultraviolet of thin films of ion-beam-deposited carbon

被引:16
作者
Larruquert, JI [1 ]
Keski-Kuha, RAM [1 ]
机构
[1] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
关键词
thin films; optical properties; reflectivity; far UV radiation; extreme UV radiation; optical constants; carbon films;
D O I
10.1016/S0030-4018(00)00884-1
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Reflectance measurements of ion-beam-deposited (IBD) C films were performed in the extreme ultraviolet (EUV) spectral region from 49 to 200 nm. Near normal incidence reflectance of LED C films was determined to be higher than that of evaporated C films but lower than that of diamond. Optical constants of IBD C films were obtained from reflectance measurements as a function of the angle of incidence in the spectral range 49.0-121.6 nm. The relatively high reflectance of IBD C films in the spectral region 49-92 nm and its stability when stored in a desiccator make it an interesting coating material for the EUV. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:437 / 443
页数:7
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