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http://dx.doi.org/10.3807/KJOP.2004.15.4.325

Fabrication of reflectometer for vacuum ultraviolet spectral characteristic measurements of optical component  

신동주 (한국표준과학연구원, 광기술표준부)
김현종 (한국표준과학연구원, 광기술표준)
이인원 (한국표준과학연구원, 광기술표준부)
Publication Information
Korean Journal of Optics and Photonics / v.15, no.4, 2004 , pp. 325-330 More about this Journal
Abstract
We fabricated a vacuum ultraviolet spectre-reflectometer which consists of a deuterium light source, a vacuum monochromator, and a sample chamber and detector module. The operation was performed in the ultraviolet spectral ranges between 115 nm and 330 nm at the vacuum pressure of 3.0 ${\times}$ 10$^{-4}$ Pa. The wavelength of the vacuum monochromator was calibrated with the line spectrum of a low pressure Mercury lamp of 253.652 nm and 184.95 nm wavelengths, and its resolution was 0.012 nm, and the precision of wavelength was $\pm$ 0.03 nm. With this reflectometer and a deuterium lamp, we measured the spectral regular transmittance and reflectance of materials(MgF$_2$, CaF$_2$, BaF$_2$, SiO$_2$, Sapphire) used as optical components over the spectral range between 115 nm and 230 nm.
Keywords
Vacuum ultraviolet radiation; Vacuum monochromator; Vacuum reflectometer; Spectral regular transmittance; Spectral regular reflectance;
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