GROWTH OF SINGLE-CRYSTAL PHOTOREFRACTIVE FIBERS OF BI12SIO20 AND BI12TIO20 BY THE LASER-HEATED PEDESTAL GROWTH METHOD

被引：27

作者：

PROKOFIEV, VV ^{[1
]}

ANDREETA, JP ^{[1
]}

DELIMA, CJ ^{[1
]}

ANDREETA, MRB ^{[1
]}

HERNANDES, AC ^{[1
]}

CARVALHO, JF ^{[1
]}

KAMSHILIN, AA ^{[1
]}

JAASKELAINEN, T ^{[1
]}

机构：

[1] UNIV SAO PAULO,INST FIS & QUIM SAO CARLOS,DEPT FIS & CIENCIA MAT,BR-13560970 SAO CARLOS,SP,BRAZIL

来源：

JOURNAL OF CRYSTAL GROWTH | 1994年 / 137卷 / 3-4期

基金：

芬兰科学院;

关键词：

D O I：

10.1016/0022-0248(94)90994-6

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Photorefractive single-crystal fibers of Bi12SiO20 up to 90 mm in length and Bi12TiO20 up to 50 mm in length with diameters of 650-1200 mum were grown by the laser-heated pedestal growth (LHPG) method. Both Bi12SiO20 and Bi12TiO20 fibers were pulled from stoichiometric (6:1) melts at pulling rates of 0.3 and 0.2 mm/min, respectively, the feeding rate was 0.1 mm/min. Growth conditions, morphology and chemical composition of the grown fibers were studied. The possible mechanisms of crystallization of incongruently melting Bi12TiO20 fiber from the stoichiometric melt were discussed. The energy-exchange effect was observed in the BSO fibers at the wavelength lambda = 0.5145 mum.

引用

页码：528 / 534

页数：7

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