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Definition of the noun absorption band
What does absorption band mean as a name of something?
- a dark band in the spectrum of white light that has been transmitted through a substance that exhibits absorption at selective wavelengths
Alternative definition of the noun absorption band
- [physics, chemistry] one of any number of ranges of wavelengths of electromagnetic radiation absorbed by a substance
Absorption band: According to quantum mechanics, atoms and molecules can only hold certain defined quantities of energy, or exist in specific states. When such quanta of electromagnetic radiation are emitted or absorbed by an atom or molecule, the energy of the radiation changes the state of the atom or molecule from an initial state to a final state. An absorption band is a range of wavelengths, frequencies or energies in the electromagnetic spectrum which are characteristic of a particular transition from initial to final state in a substance.
- also known as 吸收帶
Printed dictionaries and other books with definitions for Absorption band
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The lowest energy absorption band of BaPd(CN)4 ·4H 2 O solid has an energy of ...
by John William Ballantyne
Between the red and green regions a single broad absorption band is present. On examining the light which has passed through a still thinner layer, this absorption band is found to have become resolved into the two bands shown in Figure 2.
by Dipak K. Basu
absorption band ( F) If alkali halides are heated in the alkali vapor and cooled to room temperature, there will be a Farbe center defect. F-center is a halide vacancy with its bound ...
by Charles P. Poole, Jr.
For instance, the absorption band, which peaks at 1.65 eV in CsI, is related to the transitions among nonoverlapping subbands of the split valence band, and relaxes in approximately 10−11 s (self-localization time of holes); the absorption ...
by Edward Thorpe
The alcoho ic solution of diacetylacetone is different, for it exhibits a very broad absorption band. This band, however, extends over the regions occupied by the band of the open chain form of the substance and by the band of the sodium ...
by Bruce C. Wyman, L. Harold Stevenson
absorption band 1. The wavelengths of electromagnetic ...
by J.K. Petersen
absorption band 1 . The radiant energy of a range of electromagnetic waves or frequencies absorbed by a substance. The concept is useful in fiber optic cable fabrication. When Bragg gratings are ...
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Absorption band Meaning
Video shows what absorption band means. One of any number of ranges of wavelengths of electromagnetic radiation absorbed by a substance.. Absorption ...
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