National Cancer Institute (source definition)
Raman Spectroscopy
Emission of electromagnetic energy with a shorter frequency (longer wavelength) than that of the incident monochromatic light. Arises from the low probability absorption of quanta with a higher energy than that required for a transition: the difference in energy is emitted as a lower frequency (energy) photon. Allows analysis of vibrational and rotational energy levels using visible incident light.
Review and references
Automated source check (NCI definition)
2026-10-19
2026-10-19
professional use
References
- NCI Thesaurus 26.09d — Raman Spectroscopy (C17157)
- Source: National Cancer Institute, NCI Thesaurus 26.09d, C17157. NCI definition, reproduced without modification under CC BY 4.0.
- Development of scanning ion-conductance microscopy based tip-enhanced Raman spectroscopy in liquid environments. — Nanotechnology, 2026-10-09 (PMID 42705264; literature)
- Portable Raman spectroscopy coupled with machine learning for rapid identification and source apportionment of plastic particles in aquaculture wastewater. — Anal Methods, 2026-10-08 (PMID 42677504; literature)
What it is
Emission of electromagnetic energy with a shorter frequency (longer wavelength) than that of the incident monochromatic light. Arises from the low probability absorption of quanta with a higher energy than that required for a transition: the difference in energy is emitted as a lower frequency (energy) photon. Allows analysis of vibrational and rotational energy levels using visible incident light.
Source: National Cancer Institute, NCI Thesaurus 26.09d, C17157. NCI definition, reproduced without modification under CC BY 4.0.
Source identity and definition checked automatically on 2026-10-18. No individual clinical interpretation or human reviewer is asserted.
Compliance note
Reference intervals and interpretation depend on the laboratory, specimen, method and clinical context. This source definition is educational information; it does not establish a diagnosis, product approval or suitability for an individual.