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Related Concept Videos

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...
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...
Atomic Absorption Spectroscopy: Radiation and Light Sources01:13

Atomic Absorption Spectroscopy: Radiation and Light Sources

Atomic absorption spectroscopy (AAS) relies on the Beer-Lambert law, which requires that the radiation source emits a narrow range of wavelengths to match the absorption characteristics of the analyte atom. The primary criteria for choosing an appropriate radiation source in AAS is to provide a precise and intense emission at specific wavelengths that will allow accurate detection of the analyte.
Two common narrow-range 'line' sources used in AAS are hollow-cathode lamps (HCLs) and...

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Related Experiment Video

Updated: Jun 16, 2026

Microfluidic Fabrication Techniques for High-Pressure Testing of Microscale Supercritical CO2 Foam Transport in Fractured Unconventional Reservoirs
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Microfluidic Fabrication Techniques for High-Pressure Testing of Microscale Supercritical CO2 Foam Transport in Fractured Unconventional Reservoirs

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Continuously tunable pulsed ultraviolet light source.

F M Johnson, M W Swagel

    Applied Optics
    |January 30, 2010
    PubMed
    Summary
    This summary is machine-generated.

    Researchers developed a tunable ultraviolet (UV) light source using a dye laser and a KDP crystal. This method achieves efficient spectral line narrowing for tunable UV generation.

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

    Published on: October 30, 2012

    Area of Science:

    • Optics and Photonics
    • Laser Physics

    Background:

    • Tunable ultraviolet (UV) light sources are crucial for various scientific applications.
    • Existing methods for generating tunable UV light can be complex or inefficient.

    Purpose of the Study:

    • To develop a novel technique for producing a continuously tunable UV light source.
    • To provide a theoretical model explaining the observed phenomena.

    Main Methods:

    • Utilizing broadband emission from a dye laser.
    • Employing a rotatable potassium dihydrogen phosphate (KDP) crystal for frequency conversion.
    • Developing a theoretical model based on the mixing of emission band components.

    Main Results:

    • Achieved a continuously tunable UV source.
    • Observed significant spectral line narrowing.
    • Demonstrated relatively high experimental conversion efficiency.
    • Experimental tuning curves showed good agreement with the theoretical model.

    Conclusions:

    • The described technique offers an effective method for generating tunable UV light.
    • The theoretical model accurately predicts the experimental outcomes, validating the approach.