Fizeau interferometer
E773724
The Fizeau interferometer is an optical instrument that uses the interference of light reflected between closely spaced surfaces to make highly precise measurements of distances, surface flatness, and refractive index.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Fizeau interferometer canonical | 1 |
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
interferometer
ⓘ
optical instrument ⓘ |
| achieves |
high measurement accuracy
ⓘ
sub-wavelength resolution ⓘ |
| canBe |
multi-wavelength
ⓘ
single-wavelength ⓘ |
| comparedTo | Michelson interferometer NERFINISHED ⓘ |
| dataAnalysisMethod |
fringe counting
ⓘ
fringe pattern imaging ⓘ phase shifting interferometry ⓘ |
| field |
experimental physics
ⓘ
optics ⓘ |
| fringePatternDependsOn |
surface separation
ⓘ
surface shape ⓘ wavelength of light ⓘ |
| hasAdvantage |
direct comparison of test surface to reference surface
ⓘ
simple alignment for surface testing ⓘ |
| hasComponent |
beam splitter
ⓘ
coherent light source ⓘ detector ⓘ imaging system ⓘ reference surface ⓘ test surface ⓘ |
| measurementMethod | analysis of interference fringes ⓘ |
| measures |
distance
ⓘ
optical path difference ⓘ refractive index ⓘ surface flatness ⓘ surface shape ⓘ |
| namedAfter | Hippolyte Fizeau NERFINISHED ⓘ |
| operatesIn | reflection mode ⓘ |
| requires |
highly polished surfaces
ⓘ
monochromatic light ⓘ stable alignment ⓘ |
| typicalConfiguration |
partially reflecting reference plate
ⓘ
two closely spaced reflecting surfaces ⓘ |
| usedIn |
lens testing
ⓘ
mirror testing ⓘ optical metrology ⓘ precision engineering ⓘ refractive index measurement ⓘ surface testing ⓘ |
| usesMedium | light ⓘ |
| usesPhysicalPrinciple |
optical interference
ⓘ
wave superposition ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.