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Raman Spectroscopy Instrumentation: Overview01:26

Raman Spectroscopy Instrumentation: Overview

1.6K
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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Raman Spectroscopy: Overview01:20

Raman Spectroscopy: Overview

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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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Related Experiment Video

Updated: Mar 19, 2026

A Novel Technique for Raman Analysis of Highly Radioactive Samples Using Any Standard Micro-Raman Spectrometer
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A Novel Technique for Raman Analysis of Highly Radioactive Samples Using Any Standard Micro-Raman Spectrometer

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Miniaturisation of Raman spectroscopy systems: from benchtop to backpocket.

Mike Hardy1, Pooja P Kanade1, Emma Buchan2,3

  • 1Smart Nano NI, Centre for Quantum Materials and Technologies, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, UK. mhardy04@qub.ac.uk.

Lab on a Chip
|March 18, 2026
PubMed
Summary

Miniaturized Raman spectroscopy systems are advancing, moving from handheld devices to integrated on-chip solutions. This evolution promises widespread adoption in consumer goods and drones, transforming portable sensing capabilities.

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Area of Science:

  • Optics and Photonics
  • Analytical Chemistry
  • Materials Science

Background:

  • The global portable spectroscopy market is growing, with optical technologies dominating.
  • Raman spectroscopy offers high selectivity, untargeted detection, and multiplexing.
  • Plasmon-enhanced Raman spectroscopy enables single-molecule detection.

Purpose of the Study:

  • Analyze trends in miniaturizing Raman spectroscopy systems.
  • Evaluate current market demands for portable Raman devices.
  • Provide a future outlook for Raman spectroscopy system development.

Main Methods:

  • Surveying the progress of Raman system miniaturization.
  • Examining constituent components of miniaturized systems.
  • Assessing market needs and future developments.

Main Results:

  • Handheld Raman systems have gained popularity since 2010.
  • Significant progress has been made towards fully integrated on-chip Raman devices.
  • Miniaturized systems offer potential for integration into consumer electronics and drones.

Conclusions:

  • Miniaturization is transforming the portable Raman spectroscopy landscape.
  • On-chip Raman devices could revolutionize portable sensing.
  • Future developments will likely focus on further integration and accessibility.