Michelson interferometer
E31561
The Michelson interferometer is a precision optical instrument that splits and recombines light beams to measure extremely small differences in path length, widely used in fundamental physics experiments and metrology.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Michelson interferometer canonical | 9 |
| Fabry–Pérot arm cavities | 1 |
| Michelson stellar interferometer | 1 |
| Twyman–Green interferometer | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T244320 — 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.
Target entity: Michelson interferometer Context triple: [Michelson–Morley experiment, usedInstrument, Michelson interferometer]
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A.
Michelson–Morley experiment
The Michelson–Morley experiment was a landmark 1887 physics experiment that attempted to detect the Earth's motion through the hypothesized luminiferous aether and whose null result helped pave the way for Einstein's theory of special relativity.
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B.
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.
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C.
Fraunhofer diffraction
Fraunhofer diffraction is the far-field diffraction pattern of waves, typically light, observed when both the source and observation screen are effectively at infinite distance or made so with lenses, producing characteristic interference patterns.
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D.
Ritchey–Chrétien reflector
A Ritchey–Chrétien reflector is a specialized type of reflecting telescope that uses hyperbolic primary and secondary mirrors to produce a wide, coma-free field of view ideal for professional astronomical imaging.
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E.
Folded-port InfraRed Echellette
Folded-port InfraRed Echellette is a near-infrared spectrograph instrument used on large telescopes to obtain medium- to high-resolution spectra of astronomical objects.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: Michelson interferometer Target entity description: The Michelson interferometer is a precision optical instrument that splits and recombines light beams to measure extremely small differences in path length, widely used in fundamental physics experiments and metrology.
-
A.
Michelson–Morley experiment
The Michelson–Morley experiment was a landmark 1887 physics experiment that attempted to detect the Earth's motion through the hypothesized luminiferous aether and whose null result helped pave the way for Einstein's theory of special relativity.
-
B.
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.
-
C.
Fraunhofer diffraction
Fraunhofer diffraction is the far-field diffraction pattern of waves, typically light, observed when both the source and observation screen are effectively at infinite distance or made so with lenses, producing characteristic interference patterns.
-
D.
Ritchey–Chrétien reflector
A Ritchey–Chrétien reflector is a specialized type of reflecting telescope that uses hyperbolic primary and secondary mirrors to produce a wide, coma-free field of view ideal for professional astronomical imaging.
-
E.
Folded-port InfraRed Echellette
Folded-port InfraRed Echellette is a near-infrared spectrograph instrument used on large telescopes to obtain medium- to high-resolution spectra of astronomical objects.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
interferometer
ⓘ
optical instrument ⓘ scientific apparatus ⓘ |
| fieldOfUse |
astronomy
ⓘ
engineering ⓘ fundamental physics ⓘ metrology ⓘ optics ⓘ spectroscopy ⓘ |
| hasComponent |
beam splitter
ⓘ
compensator plate ⓘ fixed mirror ⓘ light source ⓘ moving mirror ⓘ optical detector ⓘ reference mirror ⓘ |
| hasVariant |
Fourier transform spectrometer
ⓘ
Michelson interferometer self-linksurface differs ⓘ
surface form:
Twyman–Green interferometer
fiber-based Michelson interferometer ⓘ polarization Michelson interferometer ⓘ white-light Michelson interferometer ⓘ |
| influenced | design of gravitational-wave interferometers ⓘ |
| measures |
length standards
ⓘ
optical path difference ⓘ refractive index ⓘ small displacements ⓘ surface irregularities ⓘ wavelength of light ⓘ |
| namedAfter | Albert A. Michelson ⓘ |
| produces |
fringe pattern
ⓘ
interference fringes ⓘ |
| requires |
coherent light source
ⓘ
stable mechanical mounting ⓘ |
| typicalConfiguration |
L-shaped geometry
ⓘ
two perpendicular arms ⓘ |
| usedIn |
alignment of optical components
ⓘ
calibration of laser wavelengths ⓘ testing of optical flats ⓘ |
| usedInExperiment |
Fourier transform infrared spectroscopy
ⓘ
Michelson–Morley experiment ⓘ astronomical interferometry ⓘ determination of standard meter ⓘ measurement of speed of light ⓘ precision length calibration ⓘ refractive index determination of gases ⓘ surface metrology ⓘ |
| usesPhysicalPrinciple |
coherence of light
ⓘ
interference of light ⓘ superposition of waves ⓘ |
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.
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.
Subject: Michelson interferometer Description of subject: The Michelson interferometer is a precision optical instrument that splits and recombines light beams to measure extremely small differences in path length, widely used in fundamental physics experiments and metrology.
Referenced by (12)
Full triples — surface form annotated when it differs from this entity's canonical label.