通过飞秒激光辐照形成的周期性纳米空洞结构

Periodic nanovoid structures via femtosecond laser irradiation.

作者信息

Kanehira Shingo, Si Jinhai, Qiu Jianrong, Fujita Koji, Hirao Kazuyuki

机构信息

Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan.

出版信息

Nano Lett. 2005 Aug;5(8):1591-5. doi: 10.1021/nl0510154.

DOI:10.1021/nl0510154

PMID:16089494

Abstract

We have observed periodically aligned nanovoid structures inside a conventional borosilicate glass induced by a single femtosecond (fs) laser beam for the first time, to our knowledge. The spherical voids of nanosized diameter were aligned spontaneously with a period along the propagation direction of the laser beam. The period, the number of voids, and the whole length of the aligned void structure were controlled by changing the laser power, the pulse number, and the position of the focal point.

摘要

据我们所知，我们首次观察到在常规硼硅酸盐玻璃内部，由单个飞秒（fs）激光束诱导产生了周期性排列的纳米空洞结构。纳米尺寸直径的球形空洞沿着激光束的传播方向自发地以一定周期排列。通过改变激光功率、脉冲数和焦点位置，可以控制排列的空洞结构的周期、空洞数量以及整个长度。