Optics Letters · 1981 · 42 citations · 2 references
Natural SciencesBiomedical EngineeringBiomedical OpticsBiophotonicsOpticsInterferometryOptical ImagingOptical InstrumentsOptical MetrologyHeterodyne DetectionHeterodyne InterferometryInterferometric Displacement MeasurementInterferometric MeasurementInterferometric MetrologyOptical InterferometryReal-time ProcessingSpeckle Interferometry
In-plane as well as out-of-plane displacements and vibrations of objects with diffusely scattering surfaces are measured in real time. Microvibrations with amplitudes down to 1 nm and frequencies up to 5 MHz were analyzed at a spatial resolution of 35microm.
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