Localized transient electron dynamics control in shaped ultrafast laser micro/nano fabrication

Cong Wang, Lan Jiang, Yanping Yuan, Dong Yu, Chuancai Xu, Xin Li, Feng Wang, Yongfeng Lu

Research output: Contribution to conferencePaper

Abstract

An ultrafast (femtosecond/attosecond) duration is shorter than many physical/chemical characteristic times, which makes it possible for manipulate/adjust/interfere electron dynamics such as excitations, ionizations, recombination, densities and temperatures of electrons. This opens new possibilities for controlling the transient localized material properties and corresponding phase change mechanisms, which are critical in laser micro/nano fabrication. This study proposes to control electron dynamics to change transient localized material properties by shaping femtosecond pulse trains for high-quality and high-precision laser micro/nano manufacturing. In this study, the feasibility of the proposed idea is theoretically and experimentally validated by the first-principles calculations, plasma model and experiments' results.

Original languageEnglish (US)
StatePublished - Dec 1 2012
EventLaser and Tera-Hertz Science and Technology, LTST 2012 - Wuhan, China
Duration: Nov 1 2012Nov 2 2012

Conference

ConferenceLaser and Tera-Hertz Science and Technology, LTST 2012
CountryChina
CityWuhan
Period11/1/1211/2/12

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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  • Cite this

    Wang, C., Jiang, L., Yuan, Y., Yu, D., Xu, C., Li, X., Wang, F., & Lu, Y. (2012). Localized transient electron dynamics control in shaped ultrafast laser micro/nano fabrication. Paper presented at Laser and Tera-Hertz Science and Technology, LTST 2012, Wuhan, China.