Physics – Optics
Scientific paper
2010-08-25
Physics
Optics
13 pages,6 figures, 2 tables
Scientific paper
Two methods of refractometry in reflected light from optical surface of samples are considered and studied experimentally. Methods are grounded on results of Fresnel theory of concerning light reflectivity at near normal incidence and Brewster angle. Sources of errors for both methods were considered and possibility of measuring of the refractive index with application of laser radiation with accuracy to within 4th sign was shown. Advantages of described methods concerning requirements to preparation of samples to refractive index measurement of solid, thin-film and absorbing materials are scored.
Ivashkin V. A.
Tikhonov E. A.
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