Self-organized nanogratings in glass irradiated by ultrashort light pulses

被引：1017

作者：

Shimotsuma, Y ^{[1
]}

Kazansky, PG

Qiu, JR

Hirao, K

机构：

[1] Kyocera Corp, R&D Ctr Kagoshima, Kagoshima, Kokubu 8994312, Japan

[2] Japan Sci & Technol Corp, Photon Craft Project, Kyoto 6190237, Japan

[3] Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England

[4] Japan Sci & Technol Corp, Kyoto 6190237, Japan

[5] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Photon Craft Project, Kyoto 6190237, Japan

[6] Kyoto Univ, Grad Sch Engn, Dept Chem Mat, Sakyo Ku, Kyoto 6068501, Japan

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 91卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.91.247405

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Periodic nanostructures are observed inside silica glass after irradiation by a focused beam of a femtosecond Ti:sapphire laser. Backscattering electron images of the irradiated spot reveal a periodic structure of stripelike regions of similar to20 nm width with a low oxygen concentration, which are aligned perpendicular to the laser polarization direction. These are the smallest embedded structures ever created by light. The period of self-organized grating structures can be controlled from similar to140 to 320 nm by the pulse energy and the number of irradiated pulses. The phenomenon is interpreted in terms of interference between the incident light field and the electric field of the bulk electron plasma wave, resulting in the periodic modulation of electron plasma concentration and the structural changes in glass.

引用

页数：4

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