Results 161 to 170 of about 10,165 (196)
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Three-dimensional rainbow refractometry
Optics LettersWe propose a new, to the best of our knowledge, rainbow technique called three-dimensional rainbow refractometry (TDRR), with a cylindrical lens in the signal collecting system. With a TDRR model based on the ray transfer matrix developed, it is proved that the tilt angle of the rainbow signal is related to the axial position of the droplet, which ...
Zhiwen, Deng +6 more
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Instant photographic refractometry in children
Acta Ophthalmologica, 1988Abstract. A simple photographic method for detection and measurement of refractive errors in children, using a specially designed camera and electronic flash unit and ‘instant’ (Polaroid) film, was tested on 64 children, aged 3 to 8 years, and compared with the results from retinoscopy. The refractive errors ranged from ‐6.5 to +6.5 D.
P, Wanger, G, Waern
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Optical Coherence Tomography and Coherence Techniques II, 2005
We use dispersion data to measure concentrations of pure solutions and mixtures. Spectral dispersion data are obtained from white-light interferograms. Such a technique can be used for depth-localized refractometry and as contrasting technique in OCT.
M. Bagherzadeh +4 more
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We use dispersion data to measure concentrations of pure solutions and mixtures. Spectral dispersion data are obtained from white-light interferograms. Such a technique can be used for depth-localized refractometry and as contrasting technique in OCT.
M. Bagherzadeh +4 more
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2015
Abstract The refractive index of materials is one of their most basic optical properties. In the case of liquids, the refractive index has been employed by chemists for many years to document sample purity. The simplest way to determine the refractive index is by measuring the angle at which light bends at an interface between two ...
Robert N. Compton, Michael A. Duncan
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Abstract The refractive index of materials is one of their most basic optical properties. In the case of liquids, the refractive index has been employed by chemists for many years to document sample purity. The simplest way to determine the refractive index is by measuring the angle at which light bends at an interface between two ...
Robert N. Compton, Michael A. Duncan
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Refractometry by reflectometry
SPIE Proceedings, 1995Complex refractive index determination (refractometry) of metals can be made successfully with methods using reflectivity measurements. In this paper a brief classification of reflectivity methods with subsequent comments about their sensitivity is made. Experimental results obtained using the most suitable methods are presented.
Dan Apostol +5 more
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Microchannel edge refractometry
Sensors and Actuators B: Chemical, 2010Abstract The objective of the paper is to present an optical technique that allows to characterize in situ concentration fields in microfluidic systems. The technique is based on the measurement of the refraction index in the liquid phase, in the immediate vicinity of the walls that confine the fluids.
Annick Marin +2 more
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Absorption digital refractometry
Annual Meeting Optical Society of America, 1987This paper describes the measurement of the refractive index and the absorption coefficient of optical materials, e.g., metals and semiconductors, by a new method which we call absorption digital refractometry. This method rests on the simplification in Fresnel’s equations for reflection and the existence of high-resolution digital voltmeters.
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1994
When a ray of electromagnetic radiation strikes a flat surface at an angle, the ray may be bent upward (reflected) or bend downward (refracted) as illustrated in Fig. 27.1. Notice that the ray does not go straight through the material.
Yeshajahu Pomeranz, Clifton E. Meloan
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When a ray of electromagnetic radiation strikes a flat surface at an angle, the ray may be bent upward (reflected) or bend downward (refracted) as illustrated in Fig. 27.1. Notice that the ray does not go straight through the material.
Yeshajahu Pomeranz, Clifton E. Meloan
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Proceedings. Annual meeting - American Society of Brewing Chemists, 1965
(1965). Principles of Refractometry. Proceedings. Annual meeting - American Society of Brewing Chemists: Vol. 23, Proceedings of the Annual Meeting 1965, pp. 176-186.
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(1965). Principles of Refractometry. Proceedings. Annual meeting - American Society of Brewing Chemists: Vol. 23, Proceedings of the Annual Meeting 1965, pp. 176-186.
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