Fresnel


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Fresnel

Augustin Jean . 1788--1827, French physicist: worked on the interference of light, contributing to the wave theory of light
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

fresnel

[frā′nel]
(physics)
A unit of frequency, equal to 1012 hertz.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
(2) indicates from the conditions of the experimental setup can be predicted the value of the amplitude on the optical axis, just based on the information .provided by the number of Fresnel's zone; it can be predicted that when the system subtends an even number of Fresnel's zones the optical axis will be dark and when this number is odd the same point will be bright Figure 2.
Fresnel graduated from the hotel school of Dinard in France, holds a Master in Hospitality Management from Cornell University, a Master in Economy from Pantheon Sorbonne-HEC and a PhD in Finance from the University of Bordeaux IV Montesquieu.
A permanent marker pen such as a Sharpie can then be used to mark the eyeglass lens for later placement of the Fresnel prism (Giorgi, Woods, & Peli, 2009).
In this study we report on the cure monitoring of an epoxy resin suitable for liquid composite processes, by using simultaneously u multi-instrumentation based on an OFS (a Fresnel refractometer) and DEA.
Thus, the scene was set for Fresnel's invention of his eponymous lens, which proved to be a miraculous feat of mathematics, optics, and engineering.
This paper analyzes the main impact factors of the tracking accuracy of Fresnel solar reflectors and calculated the tracking error and its influence.
Under the condition of the modified first-order Born approximation and in the Fresnel diffraction region, Equation (8) can be expressed as
The trapped guided modes could multiply scattering and find more chances for radiation out from the device and they suggest that the reduction of Fresnel reflection on the surface is a major cause of increased light-extraction efficiency.
LIGHT RELIEF: The Fresnel light transformed lighthouses after 1822 Among the famous people who passed through was William of Orange, who sailed for Ireland - the King's Gap was the road he took to his ship.
The efficiency is achieved through a patented solar boiler for direct steam generation based on innovative linear Fresnel technology.
The necessary integrals can be expressed in terms of Fresnel integrals, and he goes on to explain how to evaluate these special functions.