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Related Concept Videos

Raman Spectroscopy: Overview01:20

Raman Spectroscopy: Overview

The underlying principle of Raman spectroscopy is based on the interaction between light and matter, specifically molecules' inelastic scattering of photons. When a monochromatic beam of light, typically from a laser source, interacts with a sample, most scattered light has the same frequency as the incident light. This is known as Rayleigh scattering.
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and the...
Raman Spectroscopy Instrumentation: Overview01:26

Raman Spectroscopy Instrumentation: Overview

A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...

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Related Experiment Video

Updated: Jun 17, 2026

Multiplex Chemical Imaging Based on Broadband Stimulated Raman Scattering Microscopy
09:57

Multiplex Chemical Imaging Based on Broadband Stimulated Raman Scattering Microscopy

Published on: July 25, 2022

Rapid scanning Raman spectroscopy.

M Delhaye

    Applied Optics
    |January 14, 2010
    PubMed
    Summary
    This summary is machine-generated.

    New rapid scanning spectrometers capture Raman spectra quickly. Advanced photoelectric devices allow simultaneous recording, enabling the study of fast chemical reactions and unstable species.

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    A Multimodal Wide-Field Fourier-Transform Raman Microscope
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    A Multimodal Wide-Field Fourier-Transform Raman Microscope

    Published on: December 30, 2025

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    Last Updated: Jun 17, 2026

    Multiplex Chemical Imaging Based on Broadband Stimulated Raman Scattering Microscopy
    09:57

    Multiplex Chemical Imaging Based on Broadband Stimulated Raman Scattering Microscopy

    Published on: July 25, 2022

    A Multimodal Wide-Field Fourier-Transform Raman Microscope
    06:48

    A Multimodal Wide-Field Fourier-Transform Raman Microscope

    Published on: December 30, 2025

    Area of Science:

    • Spectroscopy
    • Chemical Kinetics

    Background:

    • Traditional Raman spectroscopy is limited by slow data acquisition.
    • Studying fast chemical reactions and transient species requires rapid spectral analysis.

    Purpose of the Study:

    • To develop and compare rapid scanning spectrometer techniques for enhanced temporal resolution in Raman spectroscopy.
    • To enable the real-time analysis of dynamic chemical processes.

    Main Methods:

    • Utilized conventional scanning monochromators with photomultiplier detectors for oscillographic recording up to 1000 cm(-1)/sec.
    • Employed advanced photoelectric devices, including image intensifier phototubes in high-aperture grating spectrographs, for simultaneous spectral region recording.
    • Investigated techniques using both continuous wave (cw) argon ion lasers and pulsed lasers (2-100 mJ).

    Main Results:

    • Achieved spectral scanning speeds up to 1000 cm(-1)/sec with conventional methods.
    • Demonstrated simultaneous recording of entire spectral regions with new photoelectric devices.
    • Obtained Raman spectra every millisecond with cw lasers and for each pulse with pulsed lasers.

    Conclusions:

    • Rapid scanning spectrometers significantly reduce acquisition time for Raman spectra.
    • Advanced photoelectric recording techniques enable the study of rapidly evolving chemical reactions and unstable species.
    • The developed methods provide powerful tools for real-time chemical analysis.