PREPARATION AND CHARACTERIZATION OF HEAVY-METAL OXIDE GLASSES - BI2O3-PBO-B2O3-GEO2 SYSTEM

被引：15

作者：

REYNOSO, VCS ^{[1
]}

BARBOSA, LC ^{[1
]}

ALVES, OL ^{[1
]}

ARANHA, N ^{[1
]}

CESAR, CL ^{[1
]}

机构：

[1] UNICAMP,INST QUIM,QUIM ESTADO SOLIDO LAB,BR-13081 CAMPINAS,SP,BRAZIL

来源：

JOURNAL OF MATERIALS CHEMISTRY | 1994年 / 4卷 / 04期

关键词：

D O I：

10.1039/jm9940400529

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

High-refractive-index glasses of heavy-metal oxides have large optical non-linearities which make them promising for optoelectronic applications. This paper describes the fabrication and characterization of the xBi2O3-PbO-B2O3-(52-x)GeO2 (BPBG) glass system with x = 10, 15, 20, 30 and 35. The BPBG glasses were melted in a high-purity alumina crucible placed in a Super Khantal resistance furnace at 1000-degrees-C for 30 min and then poured onto a steel plate. The characterization was done by X-ray diffraction (XRD), density, dilatometry, light absorption (UV-VIS-IR) and linear refractive-index measurements. The infrared spectra show the presence of BiO6 and GeO6 in the glass structure suggesting a network former role for the bismuth oxide. These measurements allowed us to estimate the non-linear refractive index n2, using Line's formula, to be as high as 1.5 x 10(-18) m2 W-1.

引用

页码：529 / 532

页数：4

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