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Absorption band

Definition of the noun absorption band

What does absorption band mean as a name of something?

noun

  1. 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

noun

  1. [physics, chemistry] one of any number of ranges of wavelengths of electromagnetic radiation absorbed by a substance

Explanation

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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Google previewEncyclopedic Dictionary of Condensed Matter Physics (2004)

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 ...

Google previewDictionary of Material Science and High Energy Physics (2001)

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 ...

Google previewEncyclopaedia medica (1902)

by Chalmers Watson

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 ...

Google previewGreen's Encyclopedia and Dictionary of Medicine and Surgery (1908)

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.

Google previewEncyclopedia of Spectroscopy and Spectrometry (2010)

The lowest energy absorption band of BaPd(CN)4 ∙4H 2 O solid has an energy of ...

Google previewThe Facts on File Dictionary of Environmental Science (2007)

by Bruce C. Wyman, L. Harold Stevenson

absorption band 1. The wavelengths of electromagnetic ...

Google previewThe Facts on File Dictionary of Physics, Fourth Edition (2009)

by John Daintith

absorption band See band spectrum absorption coefficient See Lambert's law. absorption of radiation No medium transmits radiation without some energy loss. This loss of energy is called absorption. The energy is ...

Google previewConcise Dictionary of Biomedicine and Molecular Biology (2001)

by Pei-Show Juo

An absorption band.

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absorption band

Absorption band

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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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