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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 19, 2026

Implementation of a Nonlinear Microscope Based on Stimulated Raman Scattering
09:13

Implementation of a Nonlinear Microscope Based on Stimulated Raman Scattering

Published on: July 6, 2019

Raman spectroscopic studies of diamond in Intralipid.

C A Thompson, J S Reynolds, K J Webb

    Optics Letters
    |October 28, 2009
    PubMed
    Summary

    Raman spectroscopy successfully identified diamond within a scattering Intralipid medium. This technique shows promise for in vivo diagnostics in complex biological tissues.

    Area of Science:

    • Spectroscopy
    • Materials Science
    • Biomedical Optics

    Background:

    • Raman spectroscopy is a powerful technique for material identification.
    • Scattering media like Intralipid can obscure embedded objects.
    • In vivo diagnostics require methods that can penetrate scattering biological tissues.

    Purpose of the Study:

    • To investigate the feasibility of using Raman spectroscopy to detect a diamond within an Intralipid scattering medium.
    • To assess the impact of Intralipid concentration and thickness on diamond Raman signature detection.
    • To explore the potential of Raman spectroscopy for in vivo diagnostic applications.

    Main Methods:

    • Raman spectroscopic measurements were conducted using 514-nm argon-ion and 785-nm Ti:sapphire lasers.

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    Resolving Water, Proteins, and Lipids from In Vivo Confocal Raman Spectra of Stratum Corneum through a Chemometric Approach
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    Last Updated: Jun 19, 2026

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    Assessment of Boron Doped Diamond Electrode Quality and Application to In Situ Modification of Local pH by Water Electrolysis
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  • Diamond samples were embedded in Intralipid solutions of varying concentrations and thicknesses.
  • Diamond's characteristic Raman signature was analyzed under different scattering conditions.

    • Main Results:

    • The distinct Raman signature of diamond was successfully detected despite the presence of Intralipid.
    • Varying Intralipid concentrations and thicknesses showed a measurable effect on signal intensity but did not prevent detection.
    • The study demonstrated the capability of Raman spectroscopy to identify embedded objects in scattering media.

    Conclusions:

    • Raman spectroscopy is a viable diagnostic tool for identifying objects within scattering media.
    • The findings support the potential application of Raman spectroscopy for in vivo tissue diagnostics.
    • Further research can optimize parameters for enhanced detection in complex biological environments.