7 April 1999 Total scatter measurements in the DUV/VUV
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Abstract
Light scattering of optical laser components gains in importance for the short wavelength range. A standard procedure for the measurement of 'total scattering' is described in the Draft International Standard ISO/DIS 13696, which is based on integration or collection of the scattered radiation. Meanwhile the measurement concepts have qualified for the VIS- and NIR-spectral region, investigations are necessary for an application of the standard procedure in the DUV/VUV. In this work the optical properties of selected diffuse reflective materials are studied in the DUV/VUV spectral region. For the determination of the angle resolved scattering and the relative spectral reflectance of the samples, a commercial vacuum spectrophotometer is employed. Some of the samples exhibit a cosine angle distribution for the scattered light at 193 nm and 157 nm and can be used as calibration targets. Total scatter values of different thin film samples were measured at 193 nm by using these qualified calibration targets.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Puja Kadkhoda, Detlev Ristau, Ferdinand von Alvensleben, "Total scatter measurements in the DUV/VUV", Proc. SPIE 3578, Laser-Induced Damage in Optical Materials: 1998, (7 April 1999); doi: 10.1117/12.344390; https://doi.org/10.1117/12.344390
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