infrared absorption

infrared absorption

[¦in·frə¦red əb′sȯrp·shən]
(electromagnetism)
The taking up of energy from infrared radiation by a medium through which the radiation is passing.
References in periodicals archive ?
Organa and portions of the surrounding material ejected from it show infrared absorption at wavelengths of about 2.
e equipment, which operate using infrared absorption technology, are lighter and more portable than traditional analysers and can detect and analyse up to 15 gases simultaneously out of a library of 500 to an accuracy of parts per million.
Different hemoglobin species absorb light differently at both wavelengths, and the ratio of red to infrared absorption is calculated.
According to a new market report published by Transparency Market Research " Breath Analyzers Market (Technologies: Fuel Cell, Infrared Absorption and Semiconductor Sensor; Applications: Alcohol Detection, Drug Abuse Detection, Tuberculosis Detection and Asthma Detection) - Global Industry Analysis, Size, Share, Growth, Trends and Forecast, 2013 - 2019, " the global breath analyzers market was valued at USD 402.
Some specific chapter topics include OH-related infrared absorption spectra in silicate glasses, a new photochromic diarylethene for optical storage, and the welding thermo cycle and HAZ softening of a CT80 butt weld joint.
Elaborating on the results of this study, she said:" We observed that the energy required for the electron tunneling among copper nanoparticles depends on the near infrared absorption peak and these, both, change with respect to layers copper content.
Pigments affect greatly the infrared absorption by scattering and/or absorbing IR radiation.
Contributors cover the role of field measurements, instrument platforms, quality assurance, infrared absorption spectroscopy, UV-Visible differential optical absorption spectroscopy, florescence methods, mass spectrometry methods for atmospheric trace gases or aerosol composition measurements, chemical methods (chemoluminescence, chemical amplification, electrochemistry and derivation).
It was noted that the clay silicon-oxygen (Si-O) bond infrared absorption bandwidth reduces as the organoclay becomes more dispersed.
This specular reflection spectrum exhibits the dispersion in the refractive index that occurs through an infrared absorption band.
Samples of the nano materials were analyzed for calcium (Ca) and phosphate (P) by spectrophotometric methods [34] and carbon (C) by combusting the sample at 1000[degrees]C in a constant oxygen flow and detecting the carbon dioxide by infrared absorption using a LECO CHN 2000 Analyzer (St.