Investigation of the influence of transition metal ions in niobium-borotellurite glasses through vibrational and nonlinear optical spectroscopy
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2021
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BRAZIL MRS MEETING, 19th; INTERNATIONAL UNION OF MATERIALS RESEARCH SOCIETIES - INTERNATIONAL CONFERENCE ON ELECTRONIC MATERIALS
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Tellurite glasses are know as good candidates to photonic devices’ production because they
exhibit third-order nonlinear optical susceptibilities larger than conventional silicate and
borate glasses. In addition, for glass materials such nonlinearity can be increased by adding
transition or heavy metal ions. In this direction, this work analyzed the influence of Ta5+ and
Zr2+ on the physical, structures, and nonlinear optical properties of niobium-borotellurite
(TBN) glasses. The samples were synthesized by the melt-quench technique using a melting
temperature of around 1000 ºC. DSC measurements were performed to obtain the glass
transition temperature. The densities were determined by the Archimedes method. To
analyze the local structure of the samples FTIR and Raman spectroscopies were used . The
spectrum of nonlinear refractive index (n2) for the TBN glass doped with Ta5+ and Zr2+ ions
was measured using the tunable femtosecond Z-scan technique [1]. Such results were
compared with the BGO model, which involves empirical relations between the linear and
nonlinear refractive index. The addition of metal transition ions did not lead to meaningful
changes in the glass transition temperatures (Tg). The formation of non-bridging oxygen and
BO3 units was observed from the structural analysis. The n2 value determined indicates that
the nonlinear optical responses are associated with the glass matrix. The structural changes
caused by the addition of Ta5+ and Zr2+ demonstrated a decrease followed by an increase in
the value of the molar electronic polarization of the samples, respectively.
Como referenciar
PELOSI, ANDRE G.; SANTOS, SABRINA N.C. dos; DIPOLD, JESSICA; ANDRADE, MARCELO B. de; HERNANDES, ANTONIO C.; ALMEIDA, JULIANA M.P. de; MENDONCA, CLEBER R. Investigation of the influence of transition metal ions in niobium-borotellurite glasses through vibrational and nonlinear optical spectroscopy. In: BRAZIL MRS MEETING, 19th; INTERNATIONAL UNION OF MATERIALS RESEARCH SOCIETIES - INTERNATIONAL CONFERENCE ON ELECTRONIC MATERIALS, August 30 - September 3, 2021, Online. Abstract... São Carlos, SP: Aptor Software, 2021. p. 176-176. Disponível em: http://repositorio.ipen.br/handle/123456789/32836. Acesso em: 29 Apr 2026.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.