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Related Concept Videos

Raman Spectroscopy: Overview01:20

Raman Spectroscopy: Overview

1.4K
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...
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Raman Spectroscopy Instrumentation: Overview01:26

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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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Updated: Jan 17, 2026

Direct Comparison of Hyperspectral Stimulated Raman Scattering and Coherent Anti-Stokes Raman Scattering Microscopy for Chemical Imaging
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Review on Multispectral Photoacoustic Imaging Using Stimulated Raman Scattering Light Sources.

Yuon Song1, Sang Min Park2, Yongjae Jeong1

  • 1Departments of Cogno-Mechatronics Engineering and Optics & Mechatronics Engineering, Pusan National University, Busan 46241, Republic of Korea.

Sensors (Basel, Switzerland)
|September 19, 2025
PubMed
Summary
This summary is machine-generated.

Stimulated Raman scattering generates multispectral light sources for advanced photoacoustic imaging. This review explores its use in visualizing molecular functions in tissues, enhancing diagnostic capabilities.

Keywords:
biomedical imaginglight sourcemultispectral imagingphotoacoustic imagingstimulated Raman scattering

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Area of Science:

  • Biomedical Imaging
  • Optics and Photonics

Background:

  • Photoacoustic imaging (PAI) offers high-resolution in vivo visualization of molecular functional information.
  • Developing multispectral light sources is crucial for advanced PAI applications.
  • Stimulated Raman scattering (SRS) presents a promising approach for generating these light sources, especially for photoacoustic microscopy.

Purpose of the Study:

  • To review photoacoustic imaging systems utilizing SRS for multispectral light sources.
  • To discuss the configurations and applications of SRS-based PAI in functional tissue analysis.
  • To compare SRS with other technologies for future development of multispectral light sources.

Main Methods:

  • Review of existing literature on photoacoustic imaging systems employing SRS.
  • Analysis of SRS-based multispectral light source configurations.
  • Evaluation of SRS applications in functional photoacoustic microscopy and tissue analysis.

Main Results:

  • SRS-based multispectral light sources are effective for functional photoacoustic imaging, particularly in microscopy.
  • These systems enable in vivo visualization of molecular functional information.
  • Key performance factors like wavelength tunability, repetition rate, and power are critical for accuracy and quality.

Conclusions:

  • SRS is a valuable technique for generating multispectral light sources in photoacoustic imaging.
  • Further development and comparison of light source technologies are needed to optimize PAI performance.
  • SRS-based PAI holds significant potential for advancing biomedical studies and clinical diagnostics.