Laser-induced temperature distribution in substrates with periodic multilayer structures

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Abstract

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
Volume74
Issue number9
DOIs
StatePublished - Dec 1 1993

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laminates
temperature distribution
lasers
thermal conductivity
temperature
ferrites
laser beams
thermodynamics
composite materials

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Laser-induced temperature distribution in substrates with periodic multilayer structures. / Lu, Yongfeng.

In: Journal of Applied Physics, Vol. 74, No. 9, 01.12.1993, p. 5761-5766.

Research output: Contribution to journalArticle

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