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Related Concept Videos

Ultraviolet and Visible (UV–Vis) Spectroscopy: Overview01:02

Ultraviolet and Visible (UV–Vis) Spectroscopy: Overview

Ultraviolet–visible (UV–visible or UV–Vis) spectroscopy is an analytical technique that investigates the interaction between matter and UV–Vis light within the electromagnetic spectrum. This method is widely used for its versatility, simplicity, and relatively quick data acquisition, making it valuable for both qualitative and quantitative analysis. When UV–Vis radiation passes through a material,  molecules absorb light depending on the energy required for electronic transitions. As a result...
UV–Vis Spectrometers01:14

UV–Vis Spectrometers

The absorbance of UV and visible (UV–visible) radiations is measured using a UV–visible spectrophotometer. Deuterium lamps, which emit UV radiation, and tungsten lamps, which produce radiation in the visible region, are used as light sources in UV–visible spectrophotometers. A monochromator or prism is used for diffraction grating, i.e., to split the incoming radiation into different wavelengths. A system of slits is used to focus the desired wavelength on the sample cell. Samples for...
UV–Vis Spectroscopy: Molecular Electronic Transitions01:16

UV–Vis Spectroscopy: Molecular Electronic Transitions

In Ultraviolet–Visible (UV–Vis) spectroscopy, the absorption of electromagnetic radiation is used to probe the electronic structure of molecules. This technique provides insights into molecular electronic transitions, particularly the movement of electrons between different molecular orbitals. Radiation is absorbed if the energy of the electromagnetic radiation passing through the molecule is precisely equal to the energy difference between the excited and ground states. During this process,...
UV–Vis Spectroscopy of Conjugated Systems01:32

UV–Vis Spectroscopy of Conjugated Systems

Organic compounds with conjugated double bonds show strong absorption features in the UV–visible region of the electromagnetic spectrum attributed to π → π* electronic excitations. Generally, a UV–vis absorption spectrum is recorded as a plot of absorbance vs wavelength. The wavelength of maximum absorbance, which manifests as a peak in the absorption spectrum, is denoted as λmax.
One of the factors influencing λmax is the extent of conjugation in the...

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Updated: Jun 17, 2026

Molecular Beam Mass Spectrometry With Tunable Vacuum Ultraviolet (VUV) Synchrotron Radiation
09:53

Molecular Beam Mass Spectrometry With Tunable Vacuum Ultraviolet (VUV) Synchrotron Radiation

Published on: October 30, 2012

Vacuum ultraviolet research.

J A Samson1

  • 1Experimental Physics Laboratory, GCA Corporation, Bedford, Massachusetts, USA.

Applied Optics
|January 9, 2010
PubMed
Summary
This summary is machine-generated.

This study explores vacuum ultraviolet (VUV) radiation applications in fundamental research. It highlights how VUV radiation interacts with both gases and solids, offering insights into material and chemical processes.

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Area of Science:

  • Physics
  • Chemistry
  • Materials Science

Background:

  • Vacuum ultraviolet (VUV) radiation is a powerful tool for scientific investigation.
  • Understanding VUV radiation's interaction with matter is crucial for various research fields.

Purpose of the Study:

  • To discuss the applications of VUV radiation in basic research.
  • To emphasize the interaction mechanisms between VUV radiation and gases/solids.

Main Methods:

  • Review of existing literature on VUV radiation applications.
  • Analysis of experimental data concerning VUV-matter interactions.

Main Results:

  • VUV radiation exhibits unique interaction properties with gases and solids.
  • These interactions are foundational for diverse research applications.

Conclusions:

  • VUV radiation serves as a versatile tool for fundamental scientific inquiry.
  • Further research into VUV-gas and VUV-solid interactions can unlock new applications.