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Generation of a Photoacoustic Response of a Two-Layer Polymer/Gel Structure
Ist Teil von
Technical physics, 2021-02, Vol.66 (2), p.349-355
Ort / Verlag
Moscow: Pleiades Publishing
Erscheinungsjahr
2021
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
Generation processes of a photoacoustic response of a layered polyethylene/hydrogel structure by its irradiation with periodically modulated light have been experimentally studied. The heat sources are located in a gel near the interface with polyethylene. The response in the form of the pressure oscillations occurs as a result of the thermoelastic strain of the polyethylene layer by its thickness-nonuniform heating by a thermal wave. The obtained results can be useful for modification of the techniques based on the diffusion processes in gels.