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JoVE Journal
Engineering

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Evanescent Field Based Photoacoustics
 

Evanescent Field Based Photoacoustics: Optical Property Evaluation at Surfaces

Article doi: 10.3791/54192
July 26th, 2016

Summary July 26th, 2016

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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