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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

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]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

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.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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
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References in periodicals archive ?
The electronic absorption spectra of the EBT-M complexes were recorded at room temperature using magnetized and non-magnetized water as a solvent.
Ultimately, the specially designed spectrometer allowed the European research team to acquire both emission and absorption spectra on individual molecules--truly reaching the limits of detectability.
Mirage IR Microscope provides infrared (IR) wavelength independent spatial resolution, highly sensitive IR measurements and transmission quality absorption spectra in reflection mode.
For normally incident light with x-polarization ([theta] = [phi] = 0, i.e., electric field parallel to the x-axis), the absorption spectra of W absorber (red line) and bare W slab (blue line) are calculated respectively, as shown in Fig.
This was done by comparing the IR absorption spectra of the untreated Industrial GFs with both types of silane treated (Industrial and StickNET) glass fibers.
The UV-Vis absorption spectra were collected by an Ocean Optics spectrometer HR4000 coupled with a deuterium-tungsten source.
Analyzing the UV-Vis absorption spectra of Figure 3(a) and tests data in Table 1, we can find that the maximum absorption wavelengths of four groups of sample solutions are in the range of 400~430nm, which all accord with the typical optical characteristics of AgNP colloidal system.
In the present work, two new organic sensitizers containing 4,5-bis(4-methoxyphenyl)-1H-imidazole (BPI) and Bodipy as an electron donor and a conjugated bridge, respectively, along with different additional linker groups (phenylene for BPI-P and thienyl for BPI-T) incorporated into the bridge to further expand the absorption spectra and improve the solubility were synthesized and applied in DSSCs.
The absorption spectra of original lake water, filtered samples, and CDOM dissolved in phosphate buffer were measured in a quartz cuvette with optical path 1 cm or 3 cm using the UV-V is spectrophotometer Solar PB-2201 (Belarus) within wavelength range 200-900 nm.
The absorption spectra were measured on a Lambda 35 spectrophotometer (Perkin Elmer Company, America) using a 1.0 cm cuvette.
NIR absorption spectra were recorded using a Fourier-transform near-infrared analyzer (Buchi NIRFlex N-500).