Preparation of Pb2B5O9Br-based nonlinear optical glass-matrix compositesстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Borate halide glasses have been prepared by quenching melts with the stoichiometric composition Pb2B5O9Br, an excess of B2O3, PbBr2, or Pb2B5O9Cl additions, and their glass transition and crystallization temperatures have been determined. The glasses were annealed at different temperatures to give glass-matrix composites comprising a bromine-deficient matrix and microscopic crystalline Pb2B5O9Br particles. The composites exhibit second harmonic generation, and the signal intensity correlates with the surface morphology of the materials.