Degenerate two-photon absorption spectra in Bi2O3:B2O3 glasses

被引：16

作者：

Imanishi, K ^{[1
]}

Watanabe, Y ^{[1
]}

Watanabe, T ^{[1
]}

Tsuchiya, T ^{[1
]}

机构：

[1] Sci Univ Tokyo, Dept Mat Sci & Technol, Noda, Chiba 2788510, Japan

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1999年 / 259卷

关键词：

D O I：

10.1016/S0022-3093(99)00408-1

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Degenerate two-photon absorption (TPA) spectra in binary xBi(2)O(3):(100 - x)B2O3 (x = 60, 70 and 80 mol%) glasses are measured by an open-aperture Z-scan technique. The degenerate TPA coefficient, beta, obtained at a fixed photon energy increases with Bi2O3 content (e.g., 12.8 +/- 2.1 and 17.7 +/- 3.0 cm/GW at 2.34 eV for x = 60 and x = 80, respectively), while beta becomes larger at higher photon energy (e.g., 3.2 +/- 0.5 cm/GW at 1.81 eV and 15.1 +/- 2.5 cm/GW at 2.51 eV for x = 70). The degenerate TPA spectra are reproduced by using a simple formula based on a two-parabolic band model for the electronic structure of the glasses containing heavy metal oxides. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：139 / 143

页数：5

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