Ferntosecond-laser-induced nanostructure formation and surface modification of diamond-like carbon film

被引：11

作者：

Miyaji, Godai ^{[1
]}

Kobayashi, Wataru ^{[1
]}

Miyazaki, Kenzo ^{[1
]}

机构：

[1] Kyoto Univ, Inst Adv Energy, Kyoto 6110011, Japan

来源：

ELECTROCHIMICA ACTA | 2007年 / 53卷 / 01期

关键词：

femtosecond laser ablation; diamond-like carbon; nanoscale modification; nonlinear process; pump-probe technique;

D O I：

10.1016/j.electacta.2007.02.072

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 [应用化学];

摘要：

This paper reports the pump and probe experiment for in situ reflectivity measurements in the femtosecond laser ablation that brings about nanoscale modification of diamond-like carbon (DLC) film. The characteristic reflectivity changes observed demonstrate that the formation of periodic nanostructure is preceded by a change in bonding structure of DLC in the ablation at low fluences. We have observed a coherent nonlinear wave-mixing signal that can resolve the ultrafast interaction processes for the nanoscale modification on the film surface. Based on the results obtained, a model of the interaction process is proposed. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：167 / 170

页数：4

共 9 条

[1]

Ultrashort-pulse laser ablation of indium phosphide in air [J].