refractive index


Also found in: Thesaurus, Medical, Legal, Financial, Acronyms, Encyclopedia, Wikipedia.
Related to refractive index: Total internal reflection, refractometer

refractive index

refractive index

n
(General Physics) physics a measure of the extent to which radiation is refracted on passing through the interface between two media. It is the ratio of the sine of the angle of incidence to the sine of the angle of refraction, which can be shown to be equal to the ratio of the phase speed in the first medium to that in the second. In the case of electromagnetic radiation, esp light, it is usual to give values of the absolute refractive index of a medium, that is for radiation entering the medium from free space. Symbol: ν or μ

in′dex of refrac′tion


n.
a number indicating the speed of light in a given medium, usu. as the ratio of the speed of light in a vacuum or in air to that in the given medium.
[1820–30]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.refractive index - the ratio of the velocity of light in a vacuum to that in a medium
ratio - the relative magnitudes of two quantities (usually expressed as a quotient)
Translations
Brechungsindex

refractive index

nBrechzahl f, → Brechungsindex m
References in periodicals archive ?
But even the most advanced smart glasses on the market cannot yet provide this experience, as their field of view is only about 40 horizontally limited by the highest refractive index of the image guiding substrate available on the market even when using SCHOTTs groundbreaking initial product generation launched one year ago, defining the cutting edge of the industry.
The effects of depositing a thin, highly refractive index (RI) layer onto the cladding over the grating region have been reported [8, 9].
Hence, to keep the size compact and to enhance the received power in WPT, we have introduced a gradient refractive index structure at the aperture of the horn antenna.
If such a framework of evaluation is developed for the optical characteristics of transparent soil, it shall provide guidance for modeling experiments of transparent soil to reduce limitations on geometry and refractive index matching.
To our knowledge, this is the first article that demonstrates precise control of the refractive index by using ABAtype polyimide-silica hybrid polymers.
the radius of the rod is 0.1[micro]m and the refractive index Of silicon rod is 3.4i.e the dielectric constant is 11.976.
in 2008 [11] were the first to investigate the sol-gel coated FBG for refractive index sensors.
We also analyze the performance of the manufactured gratings as sensors of temperature and refractive index.
(4) However, the LEE of LEDs is limited due to the differences in the interface refractive index (RI) of LED chips, encapsulants, and the surrounding air.
where L denotes a layer with low refractive index and H denotes a layer with high refractive index, and p is the number of repeating periods.
Preventing reflections requires controlling an abrupt change in "refractive index," a property that affects how waves such as light propagate through a material.