absorption spectrum


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absorption spectrum

n.
The electromagnetic spectrum, broken by a specific pattern of dark lines or bands, observed when radiation traverses a particular absorbing medium and through a spectroscope. The absorption pattern of an element is unique and can be used to identify the substance of the medium.

absorption spectrum

n
(General Physics) the characteristic pattern of dark lines or bands that occurs when electromagnetic radiation is passed through an absorbing medium into a spectroscope. An equivalent pattern occurs as coloured lines or bands in the emission spectrum of that medium

absorp′tion spec`trum


n.
the spectrum formed by electromagnetic radiation that has passed through a medium in which radiation of certain frequencies is absorbed.
[1875–80]

absorption spectrum

The pattern of dark lines and colors made when light passes through an absorbing medium, such as a gas or liquid. The dark lines represent the colors that are absorbed. Because each type of atom absorbs a unique range of colors, the absorption spectrum can be used to identify the composition of distant substances, such as the gaseous outer layers of stars.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.absorption spectrum - the spectrum of electromagnetic radiation that has passed through a medium that absorbed radiation of certain wavelengthsabsorption spectrum - the spectrum of electromagnetic radiation that has passed through a medium that absorbed radiation of certain wavelengths
spectrum - an ordered array of the components of an emission or wave
References in periodicals archive ?
The fact that chlorophyll's absorption spectrum makes things surprisingly green reflects the compromises inherent in being able to capture every photon possible when they are scarce, yet field only just enough when they are plentiful.
The absorption spectrum of a micronized UV filter depends on its particle size.
However, the addition of other metal ions namely Ni, Mg, Zn, Cd, Fe, Cu and Pb under similar conditions had no effect on the absorption spectrum (fig 5).
Once reflectance data is gathered, the optical absorption spectrum of cellulose fibers that form the sheet of paper can be calculated using special spectroscopic data analysis.
Every substance has its own unique absorption spectrum.
The UV-visible absorption spectrum of composite films was recorded using Shimadzu UV-1061 UV-Vis spectrophotometer in the range 200-800 nm.
That absorption spectrum allows the scientists to probe the value of alpha in the atmosphere of the white dwarf with high accuracy.
This can be seen, in vitro, in improved photophysical properties such as the extension of the useful light absorption spectrum into the near infrared - offering greater tissue penetration - as well as in the synthesis of pure compounds rather than mixtures.
In the future, it is hoped that CQD technology will lead to highly efficient solar cells that take less energy to produce, are flexible and absorb more of the sun's energy than silicon, which is limited by its inherent absorption spectrum.
What is special about this product is its extremely wide and constant absorption spectrum from just a few megahertz to more than 50 gigahertz.