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Photothermal beam-deflection imaging of vertical interfaces in solids
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1986
Year
Vertical InterfacesEngineeringMicroscopyOptical TestingMechanical EngineeringBeam OpticOptical PropertiesMaterials SciencePhysicsFinite Probe-beam SizeThermal ImagingOpaque SolidsPhotoelasticityThermographySurface ScienceApplied PhysicsLaser UltrasoundOptical EngineeringDiffractive Optic
A new method for calculating signals in photothermal beam-deflection imaging is reviewed and applied to the case of vertical interfaces (cracks or other thermal barriers) in opaque solids. The generality of the approach and the effect of finite probe-beam size are emphasized.