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[en] A general model is derived for computing the temperature profile induced by multibeam laser irradiation in a semi-infinite substrate. The model is then applied to calculate 2-beam irradiation induced temperature rise in substrate. From this model, it is possible to calculate the temperature profile induced by multi-beam irradiation in substrate. The calculated results show that the double-Gaussian beam has advantages of narrow temperature profile and low heat flow intensity. Flatly-topped temperature profiles can be obtained by converting the Gaussian laser beam
Source
Nastasi, M. (ed.) (Los Alamos National Lab., NM (United States)); Harriott, L.R. (ed.) (AT and T Labs., Murray Hill, NJ (United States)); Herbots, N. (ed.) (Arizona State Univ., Tempe, AZ (United States)); Averback, R.S. (ed.) (Univ. of Illinois, Urbana, IL (United States)); 932 p; ISBN 1-55899-174-3; 
; 1993; p. 705-710; Materials Research Society; Pittsburgh, PA (United States); 16. Materials Research Society (MRS) fall meeting; Boston, MA (United States); 30 Nov - 5 Dec 1992; Materials Research Society, 9800 McKnight Road, Pittsburgh, PA 15237 (United States)
; 1993; p. 705-710; Materials Research Society; Pittsburgh, PA (United States); 16. Materials Research Society (MRS) fall meeting; Boston, MA (United States); 30 Nov - 5 Dec 1992; Materials Research Society, 9800 McKnight Road, Pittsburgh, PA 15237 (United States)