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Evanescent Field Based Photoacoustics: Optical Property Evaluation at Surfaces

DOI :

10.3791/54192-v

10:21 min

July 26th, 2016

July 26th, 2016

11,109 Views

1Biomedical Engineering, Duquesne University, 2Department of Computer Science, University of Missouri, 3Department of Bioengineering, University of Missouri

Here we present a protocol to estimate material and surface optical properties using the photoacoustic effect combined with total internal reflection. This technique evanescent field-based photoacoustics can be used to create a photoacoustic metrology system to estimate materials' thicknesses, bulk and thin film refractive indices, and explore their optical properties.

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Evanescent Field based Photoacoustics

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