Growth of lattice-matched yttrium-substituted aluminum garnets for zone-doped crystals
2002; Elsevier BV; Volume: 242; Issue: 3-4 Linguagem: Inglês
10.1016/s0022-0248(02)01411-2
ISSN1873-5002
Autores Tópico(s)Luminescence Properties of Advanced Materials
ResumoAbstract Yb-doped Y 3 Al 5 O 12 (YAG) was matched in its lattice constant and thermal expansion to undoped YAG for the growth of zone-doped laser crystals in rod design (doped core, wrapped by the undoped mantle). Sc was used to expand the lattice. For the combination of (Y,Yb) 3 (Sc,Al) 5 O 12 /YAG with 20 at% Yb on the dodecahedral sites, the difference of the lattice parameter between doped and undoped crystal regions could be reduced to 3.63×10 −3 A (=3.02×10 −2 %). Crack-free intergrowth of the core and mantle material could be achieved.
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