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.
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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 ?
Using sophisticated analytical instrument at the Advanced Light Source facility, they measured the absorption spectra of low-energy X-rays by carbon, nitrogen, and oxygen in the fossils.
Using spectrophotometer Shimadzu UV-1700 the electronic ground-state absorption spectra were recorded at the room temperature.
This corresponds to the absorption spectra of porphyrins, which are stimulated to produce free radicals and oxygen atoms (2).
The absorption spectra were recorded on the same spectrophotometer, with 1cm quartz cells and supported with Jasco Spectra Manager software for GUL-LIVER Ver.
The absorption spectra (A) of the deposited thin films were recorded with a double beam (Pye-Unico UV-2102 PC) spectrophotometer.
Figures 1 and 2 shows the optical absorption spectra of unirradiated and irradiated CdS/PVA nanocomposite films as a function of irradiation doses.
Absorption spectra of number of bipyridyl platinum (II) bisstilbenylacetylide complexes with different possible auxiliary substituents are studied using the density functional theory (DFT) and linear response time-dependent DFT (TD-DFT).
Figure 4 shows the changes in the absorption spectra of a curcumin capped gold nanoparticle solution, imparted by the presence of [Hg.
Firstly, the implementation of fullerene-free acceptor materials resulted in high open-circuit voltages and useful absorption spectra in the visible.
As the satellite orbits at 650 kilometres above Earth, the FTS is poised to take sequences of atmospheric absorption spectra twice a day, during sunrise and sunset.
We produced absorption spectra of the pigment extracts using the Ocean Optics spectrophotometer fitted with a CUV-FL-DA cuvette holder (Ocean Optics, Dunedin, FL, USA).