THERMOELEASTIC RESPONSE OF POLYCRYSTALLINE Si TO AN INTENSE CW LASER BEAM.

Liarokapis, E; Anastassakis, E

dc.contributor.author	Liarokapis, E	en
dc.contributor.author	Anastassakis, E	en
dc.date.accessioned	2014-03-01T01:07:19Z
dc.date.available	2014-03-01T01:07:19Z
dc.date.issued	1988	en
dc.identifier.issn	00318949	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/9929
dc.subject.other	LASER BEAMS - Effects	en
dc.subject.other	MATHEMATICAL TECHNIQUES - Applications	en
dc.subject.other	STRAIN	en
dc.subject.other	STRESSES - Thermal	en
dc.subject.other	COMPRESSIVE STRESSES	en
dc.subject.other	THERMAL STRAINS	en
dc.subject.other	SEMICONDUCTING SILICON	en
dc.title	THERMOELEASTIC RESPONSE OF POLYCRYSTALLINE Si TO AN INTENSE CW LASER BEAM.	en
heal.type	journalArticle	en
heal.identifier.primary	10.1088/0031-8949/38/1/014	en
heal.identifier.secondary	http://dx.doi.org/10.1088/0031-8949/38/1/014	en
heal.publicationDate	1988	en
heal.abstract	We have used analytic methods to obtain closed forms for the thermal strains induced on polycrystalline Si when a cw visible laser beam is focused on its surface. The material is treated as isotropic with appropriately chosen elastic constants. The solution is expressed in terms of the Galerkin vectors for a semi-infinite bulk medium under point dilatation. The results show that considerable strains (corresponding to typical compressive stresses up to 0. 5 GPa) are produced even for laser power densities lower than the threshold for melting. Three-dimensional graphical representations are given for the elastic displacements, the strain, and stress components, as a function of appropriate geometrical coordinates.	en
heal.journalName	Physica Scripta	en
dc.identifier.doi	10.1088/0031-8949/38/1/014	en
dc.identifier.volume	38	en
dc.identifier.issue	1	en
dc.identifier.spage	84	en
dc.identifier.epage	89	en