Laser-induced temperature distribution in substrates with periodic multilayer structures

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A general model and analytical results have been derived to obtain laser-induced temperature rise in substrates with periodic multilayer structures. The substrate can be equivalent to a homogeneous substrate with anisotropic thermal conductivity, if the dimension of the periodic structure is much smaller than the laser spot size. The laser-induced temperature rise can be then obtained by solving the three-dimensional heat equation with the different thermal conductivities in directions parallel and perpendicular to the layer structure. This model has been applied to calculate the laser-induced temperature rise in Si and Mn-Zn ferrite composite materials. A different temperature rise can be obtained when a laser beam irradiates the substrate surface, which is oriented in parallel or perpendicular to the layer structure.

Original languageEnglish (US)
Pages (from-to)5761-5766
Number of pages6
JournalJournal of Applied Physics
Issue number9
Publication statusPublished - Dec 1 1993


ASJC Scopus subject areas

  • Physics and Astronomy(all)

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