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Proceedings Paper

Minimization of the surface non-uniformity of a Nd:YVO4 cylindrical bar grown by edge-defined film-fed growth (EFG) method, when the pressure in the furnace changes
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Paper Abstract

In this paper the dependence of the crystal radius on the pulling rate (v), melt temperature (T0) at the meniscus basis, pressure in the furnace (p) and die radius (r0e) is found. This dependence is used to show in which kind the effect of the variation of one of these parameters can be compensated by varying an other one. Those values of v, T0, p and r0e are determined for which the crystal radius variations due to small uncontrollable variations of v, T0, p around some average values cause minimal surface non-uniformity. Numerical results are given for a Nd:YVO4 cylindrical bar grown in a furnace in which the vertical temperature gradient is k=33 K/mm.

Paper Details

Date Published: 1 June 2005
PDF: 12 pages
Proc. SPIE 5792, Laser Source and System Technology for Defense and Security, (1 June 2005); doi: 10.1117/12.602295
Show Author Affiliations
Liliana Braescu, West Univ. of Timisoara (Romania)
Agneta Maria Balint, West Univ. of Timisoara (Romania)
Robert Szabo, West Univ. of Timisoara (Romania)
Stefan Balint, West Univ. of Timisoara (Romania)


Published in SPIE Proceedings Vol. 5792:
Laser Source and System Technology for Defense and Security
Gary L. Wood, Editor(s)

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