Diffractive Microrefractometer

Alexander A. Arefiev

doi:10.1117/12.221089

21 September 1995 Diffractive microrefractometer

Alexander A. Arefiev

Proceedings Volume 2503, Air Toxics and Water Monitoring; (1995) https://doi.org/10.1117/12.221089
Event: European Symposium on Optics for Environmental and Public Safety, 1995, Munich, Germany

Abstract

The investigations of the asymmetrical Fraungofer type diffraction patterns allowed me to propose a method for testing a refractive index of the transparent objects. The two modifications for measuring a refractive index are presented. The first was based on effect from the longitudinal shift between two knives of the diffraction slit. The information about the exchange of refractive index we can obtain by analysis coordinates of the diffraction pattern extremes. The second was a modification of Young experiment. In this scheme the slits are separated in the direction of propagation of the incedent radiation. A deviation of etalon's and sample's indeci of refraction is determined by analysis of interference pattern in central diffraction maximum.

Citation Download Citation

Alexander A. Arefiev "Diffractive microrefractometer", Proc. SPIE 2503, Air Toxics and Water Monitoring, (21 September 1995); https://doi.org/10.1117/12.221089

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