, Volume 32, Issue 8, pp 691-693

Imaging thermal fields in nonlinear photoacoustics

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It is demonstrated that the shape of a photoacoustic response in systems with a temperature-dependent thermal expansion coefficient (thermononlinear case) represents a wavelet transform of the spatial distribution of heat sources.

Original Russian Text © V.B. Oshurko, 2006, published in Pis’ma v Zhurnal Tekhnicheskoĭ Fiziki, 2006, Vol. 32, No. 16, pp. 1–9.