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History
Ellipsometry
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Ellipsometry is an optical technique for investigating the dielectric properties of thin films. Ellipsometry measures the change of polarization upon reflection or transmission and compares it to a model.
An Ellipsometer at LAAS-CNRS in Toulouse, France.
An Ellipsometer at LAAS-CNRS in Toulouse, France.
Refractive index
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In optics, the refractive index of an optical medium is a dimensionless number that gives the indication of the light bending ability of that medium.
Thomas Young coined the term index of refraction in 1807.
Thomas Young coined the term index of refraction in 1807.
Diamonds have a very high refractive index of 2.417.
Diamonds have a very high refractive index of 2.417.
A split-ring resonator array arranged to produce a negative index of refraction for microwaves
A split-ring resonator array arranged to produce a negative index of refraction for microwaves
In optical mineralogy, thin sections are used to study rocks. The method is based on the distinct refractive indices of different minerals.
In optical mineralogy, thin sections are used to study rocks. The method is based on the distinct refractive indices of different minerals.