Infrared optical constants of black powders determined from reflection measurements.


The real and imaginary parts of the complex index of refraction have been measured in the 3-14-microm region for nine black powders. Data were obtained from specular reflection measurements on pressed powder disks. A vintage prism spectrometer was considerably modified for this study. Polarized radiation, detected with a cooled photoconductor, was used to… (More)
DOI: 10.1364/AO.20.003961


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