Raman effect
E129045
The Raman effect is a spectroscopic phenomenon in which light scattered by a material undergoes a change in wavelength due to interactions with the material’s molecular vibrations, providing a powerful tool for chemical and structural analysis.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Raman effect canonical | 5 |
| Raman spectroscopy | 3 |
| Raman scattering | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T1117036 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Raman effect Context triple: [C. V. Raman, knownFor, Raman effect]
-
A.
Hanbury Brown and Twiss effect
The Hanbury Brown and Twiss effect is a quantum optical phenomenon in which correlations in the arrival times of identical particles, such as photons, reveal their underlying statistical and coherence properties.
-
B.
Stark effect
The Stark effect is the splitting and shifting of atomic or molecular spectral lines caused by an external electric field.
-
C.
Poisson spot
Poisson spot is a bright point of light that appears at the center of the shadow of a circular object due to wave diffraction, providing striking evidence for the wave nature of light.
-
D.
Compton effect
The Compton effect is the increase in wavelength (and corresponding decrease in energy) of X-rays or gamma rays when they scatter off electrons, providing key evidence for the particle nature of light.
-
E.
Szilard–Chalmers effect
The Szilard–Chalmers effect is a nuclear chemistry phenomenon in which atoms that undergo neutron capture and become radioactive are chemically separated from their original, non-activated atoms due to recoil-induced disruption of their chemical bonds.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Raman effect Target entity description: The Raman effect is a spectroscopic phenomenon in which light scattered by a material undergoes a change in wavelength due to interactions with the material’s molecular vibrations, providing a powerful tool for chemical and structural analysis.
-
A.
Hanbury Brown and Twiss effect
The Hanbury Brown and Twiss effect is a quantum optical phenomenon in which correlations in the arrival times of identical particles, such as photons, reveal their underlying statistical and coherence properties.
-
B.
Stark effect
The Stark effect is the splitting and shifting of atomic or molecular spectral lines caused by an external electric field.
-
C.
Poisson spot
Poisson spot is a bright point of light that appears at the center of the shadow of a circular object due to wave diffraction, providing striking evidence for the wave nature of light.
-
D.
Compton effect
The Compton effect is the increase in wavelength (and corresponding decrease in energy) of X-rays or gamma rays when they scatter off electrons, providing key evidence for the particle nature of light.
-
E.
Szilard–Chalmers effect
The Szilard–Chalmers effect is a nuclear chemistry phenomenon in which atoms that undergo neutron capture and become radioactive are chemically separated from their original, non-activated atoms due to recoil-induced disruption of their chemical bonds.
- F. None of above. chosen
Statements (53)
| Predicate | Object |
|---|---|
| instanceOf |
inelastic light scattering process
ⓘ
spectroscopic phenomenon ⓘ |
| basedOn | inelastic scattering of photons ⓘ |
| contrastedWith |
Brillouin scattering
ⓘ
Rayleigh scattering ⓘ |
| describedBy | Raman scattering cross section ⓘ |
| discoveredBy |
C. V. Raman
ⓘ
K. S. Krishnan ⓘ |
| discoveryYear | 1928 ⓘ |
| givesRiseTo |
Stokes lines
ⓘ
anti-Stokes lines ⓘ |
| hasApplicationIn |
art conservation
ⓘ
biology ⓘ chemistry ⓘ geology ⓘ materials science ⓘ medicine ⓘ physics ⓘ |
| involves |
change in wavelength of scattered light
ⓘ
molecular vibrations ⓘ phonons in solids ⓘ rotational transitions ⓘ vibrational transitions ⓘ |
| namedAfter | C. V. Raman ⓘ |
| observedIn |
gases
ⓘ
liquids ⓘ solids ⓘ |
| occursIn | light scattering ⓘ |
| recognizedBy |
Nobel Prize in Physics
ⓘ
surface form:
Nobel Prize in Physics 1930 for C. V. Raman
|
| relatedTo |
rotational energy levels
ⓘ
vibrational energy levels ⓘ |
| requires | monochromatic incident light ⓘ |
| resultsIn | frequency shift of scattered light ⓘ |
| spectralRegion |
near-infrared light
ⓘ
ultraviolet light ⓘ visible light ⓘ |
| typicallyUses | laser excitation ⓘ |
| underlies |
Raman effect
self-linksurface differs
ⓘ
surface form:
Raman spectroscopy
coherent anti-Stokes Raman scattering ⓘ resonance Raman spectroscopy ⓘ stimulated Raman scattering ⓘ surface-enhanced Raman spectroscopy ⓘ |
| usedFor |
biological tissue analysis
ⓘ
chemical analysis ⓘ forensic analysis ⓘ material characterization ⓘ molecular identification ⓘ nanomaterials characterization ⓘ pharmaceutical analysis ⓘ phase identification ⓘ semiconductor characterization ⓘ stress analysis in solids ⓘ structural analysis ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Raman effect Description of subject: The Raman effect is a spectroscopic phenomenon in which light scattered by a material undergoes a change in wavelength due to interactions with the material’s molecular vibrations, providing a powerful tool for chemical and structural analysis.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Raman scattering
this entity surface form:
Raman spectroscopy
subject surface form:
C. V. Raman
this entity surface form:
Raman spectroscopy
this entity surface form:
Raman scattering
this entity surface form:
Raman spectroscopy