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 ?
Seyfert, of Warner and Swasey Observatory, has been studying six of a rare class of spirals whose nuclei exhibit high-excitation nebular emission lines superposed on the usual G-type absorption spectrum.
A study of the UV-visible absorption spectrum of molecular chlorine.
Quotation are invited for A Spectrometer with Diffraction Grating for the Study of Absorption spectrum of iodine vapour including a lamp house with filament lamp & stand, adjustable in height.
The result of absorption spectrum of CuO NPs prepared by laser agreed with reference [18].
The absorption spectrum of UV-Vis for developed crystal was carried out between 190nm to 790nm with an instrument model lambda 25 spectrophotometer.
We use DMF as the reference solution for the absorption spectrum of ZnO nanoparticles.
Since the electrons only absorb light of certain frequencies, the absorption spectrum will show up as a series of black bands on an otherwise continuous spectrum.
Shape of the absorption spectrum, peak position, type, homogeneity and concentration of the synthesized Ti[O.
By taking advantage of the ultrathin film coatings and patterning, we are able to maximise the absorption spectrum while keeping the solar absorber's emission levels quite low," Dr Lu explained.
A GNR's surface plasmon absorption spectrum is directly related to its aspect ratio.
However, a recent paper in Nature Letters describes a miniaturized spectrometer that uses the absorption spectrum of colloidal quantum dots (CQDs) overlaid on a charge-coupled device (CCD) detector as an alternative to interferometric techniques (2).
Likewise, the absorption spectrum of PEA 1, characterized by a 330-440 nm band with a lmax at 390 nm, was unchanged even in the presence of both MB and oxygen when the solution was not illuminated, Figure 1(c).