Raman Spectrometry (Raman)

global foundries amd

Raman spectroscopy is a non-destructive and non-invasive method that can be used to assess the physical characteristics of materials, examine chemical bonding, and identify molecules. It resolves most of limitations of other spectroscopic techniques. It is also defining technique which offers chemical and structural information.


Raman Spectrometry (Raman)

Raman Spectroscopy is a vibrational spectroscopic technique that uses the wavelength shift of light scattered (Raman shift) from molecules in a sample, to characterize them. When light of known wavelength is inelastically scattered by matter, the wavelength shift (or frequency shift) of the scattered photons is different from the incident photons. The shift is related to the molecular vibrations, which are unique to each molecular structure. The change in frequency of scattered photons may be positive or negative. Raman spectroscopy involves detecting and recording these wavelength shifts and using them to analyze what is in the sample. A Raman spectrum will have several peaks, each peak corresponding to a specific mode of molecular vibration of a chemical species. The position of the peaks is used for species identification, while its intensity indicates species concentration. Several variations of the basic technique exist, such as Resonance Raman, Spontaneous Raman, Fourier Transform Raman, Surface Enhanced Raman Spectroscopy, and nonlinear coherent Raman techniques, such as hyper Raman spectroscopy. The types of materials to which Raman Spectroscopy can be applied is wide ranging, including dissolved organic and inorganic molecules, crystalline solids, ceramics, glasses, nanostructure materials and microorganisms. In the case of gases, the concentration of molecules in a gas is typically very low, so special measurement techniques to enhance the signals are needed.


Common Uses of Raman Spectrometry (Raman) 

  • Water pollution monitoring
  • Coal and derivatives analysis
  • Characterization of 2D materials like Graphene
  • Characterization of crystal structures
  • Biochemical studies at cellular level
  • Medical research such as study of transdermal delivery of drugs into skin

Advantages of Raman Spectrometry (Raman) 

  • Non-destructive technique
  • Small sample quantity with minimal preparation
  • Rapid analysis
  • Applicable for wide range of organic and inorganic materials

Limitations of Raman Spectrometry (Raman) 

  • Many compounds are not suitable for Raman spectrometry due to molecular asymmetry or fluorescent effects
  • Cannot be used for metals and alloys

Industrial Applications of Raman Spectrometry (Raman) 

  • Chemical and molecular analysis
  • Biological research
  • Materials testing and characterisation
  • Environmental analysis
  • Medical research
  • Pharmaceutical research and quality control

Need help or have a question?
Case Study In-depth examination of genuine material testing solutions
Dopant and ultra-low concentration elemental analysis using Scanning…

EELS analysis of gate and channel is performed on fin field-effect transistors (finFETs). Scanning transmission electron…

Learn More
Analysis of degradation of PVC pipe using Fourier…

FTIR analysis is used to study the migration and leaching of phthalate plasticizers from p-PVCs. Phthalate…

Learn More
Nano-scale roughness measurement of Si-wafers by Atomic Force…

Nano-scale surface roughness is a critical parameter in fabricated thin-films that are used in optics, solar…

Learn More
See all Case Study

Looking for Material Testing?

We have already delivered 10000+ Material Test results to top companies

    Free Consultation? - Talk to our experts

    (888) 878-3090

    Send us a request

      Process for testing
        STEP 01

        You share material and testing requirements with us

        STEP 02

        You ship your sample to us or arrange for us to pick it up.

        STEP 03

        We deliver the test report to your email.

        Let’s work together!

        Share your testing requirements with us and we will be happy to assist you.

        ddd Just share your testing requirements and leave the rest on us!
        • Quick Turnaround and Hasslefree process
        • Confidentiality Guarantee
        • Free, No-obligation Consultation
        • 100% Customer Satisfaction


          Let us combine our capabilities to achieve success!!