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Infrared point-diffraction interferometer
48
Citations
1
References
1978
Year
Optical MaterialsEngineeringPoint-diffraction InterferometerOptical TestingInterferometryFiber OpticsOptical CharacterizationYields FringesOptical PropertiesTwyman–green InterferometerInfrared OpticInstrumentationOptical SystemsPhotonicsPhysicsDiffractive OpticTime MetrologyThermal PhysicsOptical ComponentsOptical SensorsInfrared SensorNatural SciencesSpectroscopyApplied PhysicsInfrared Systems
A point-diffraction interferometer (PDI) for use in the infrared is discussed. It is shown that the PDI is simple and easy to use and also yields fringes of constant optical path difference similar to those obtained with a Twyman–Green interferometer. The fabrication of the PDI is described, and typical results obtained using the interferometer at a wavelength of 10.6 μm are shown.
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