Physical disorder and optical properties in the vacuum ultraviolet region of amorphous SiO2 -: art. no. 175501

被引：146

作者：

Hosono, H

Ikuta, Y

Kinoshita, T

Kajihara, K

Hirano, M

机构：

[1] Japan Sci & Technol Corp, Transparent Electro Act Mat, Exploratory Res Adv Technol, Takatsu Ku, Kawasaki, Kanagawa 2130012, Japan

[2] Tokyo Inst Technol, Mat & Struct Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.87.175501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The optical absorption of point-defect-free SiO(2) glass in the vacuum ultraviolet region is primarily controlled by the concentrations of three- and four-membered ring structures composed of heavily strained Si-O-Si bonds. The main channel of color center formation by F(2) excimer laser (7.9 eV) irradiation is not Frenkel-defect generation of oxygen via two-photon absorption processes but a pair generation of E' and nonbridging oxygen hole centers by the one-photon excitation of these strained bonds with 7.9 eV photons.

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页码：175501 / 175501

页数：4

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