Refractive index measurement of absorbing and turbid fluids by reflection near the critical angle

Meeten, G.H. and North, A.N. (1995) Refractive index measurement of absorbing and turbid fluids by reflection near the critical angle. Measurement Science & Technology, 6 (2). pp. 214-221. (The full text of this publication is not available from this repository)

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Official URL
http://dx.doi.org/10.1088/0957-0233/6/2/014

Abstract

A method is described for measuring the specular optical reflectance R(phi) of the interface between a fluid and a glass prism, the incident and reflected light being in the glass, and the angle of incidence phi being varied about the critical angle. Transparent, absorbing and some turbid fluids give R(phi) close to theoretical predictions, and experimental reflectance data are analysed to give the real (n') and imaginary (n'') refractive indices of the fluid. Other turbid fluids gave R(phi) data that differed strongly from theoretical expectation. This is attributed to heterogeneity of the fluid on the optical wavelength scale, and problems of refractometry for such fluids are discussed.

Item Type: Article
Subjects: Q Science > QC Physics
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences
Depositing User: O.O. Odanye
Date Deposited: 04 Jun 2009 08:38
Last Modified: 15 Jul 2014 14:15
Resource URI: http://kar.kent.ac.uk/id/eprint/19386 (The current URI for this page, for reference purposes)
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