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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...
Super-resolution Fluorescence Microscopy01:37

Super-resolution Fluorescence Microscopy

Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been developed.

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Measuring Diffusion Coefficients via Two-photon Fluorescence Recovery After Photobleaching
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Published on: February 26, 2010

Recent developments in tunable lasers for spectroscopy.

C R Pidgeon, M J Colles

    Nature
    |May 31, 1979
    PubMed
    Summary

    Recent advances in tunable lasers are reviewed, focusing on their significant applications in spectroscopy. This technology enables precise spectral measurements and analysis across various scientific fields.

    Area of Science:

    • Physics
    • Physical Chemistry
    • Spectroscopy

    Background:

    • Tunable lasers represent a significant advancement in laser technology.
    • Their ability to emit light at specific, adjustable wavelengths is crucial for many scientific applications.

    Purpose of the Study:

    • To review recent developments in tunable laser technology.
    • To highlight the specific applications of these lasers in the field of spectroscopy.

    Main Methods:

    • Literature review of recent advancements in tunable laser systems.
    • Analysis of case studies demonstrating tunable laser applications in spectroscopy.

    Main Results:

    • Significant progress has been made in laser tunability, efficiency, and wavelength range.

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    Excitation-Scanning Hyperspectral Imaging Microscopy to Efficiently Discriminate Fluorescence Signals
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    Published on: February 26, 2010

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    Patterned Photostimulation with Digital Micromirror Devices to Investigate Dendritic Integration Across Branch Points

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    Excitation-Scanning Hyperspectral Imaging Microscopy to Efficiently Discriminate Fluorescence Signals

    Published on: August 22, 2019

  • Tunable lasers are increasingly vital for high-resolution spectroscopy, chemical analysis, and fundamental research.

    • Conclusions:

    • The continuous innovation in tunable lasers is expanding their utility in spectroscopy.
    • These advancements facilitate more sophisticated and precise spectroscopic investigations.