Errors in critical-angle measurement of refractive index of optically absorbing materials
G H Meeten; A N North; F M Willmouth; G H Meeten; Dept. of Phys., City of London Polytech., London, UK; A N North; Dept. of Phys., City of London Polytech., London, UK; F M Willmouth; Dept. of Phys., City of London Polytech., London, UK
Журнал:
Journal of Physics E: Scientific Instruments
Дата:
1984-08-01
Аннотация:
Large errors are possible in critical-angle measurements of the refractive index of optical absorbers. These arise from the dependence of the reflectivity and transmissivity of a plane optical interface on the imaginary part of the complex relative refractive index. The errors are calculated directly from the Fresnel equations.
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