Ultrafast dynamics observation during femtosecond laser-material interaction

Baoshan Guo, Jingya Sun, Yong Feng Lu, Lan Jiang

Research output: Contribution to journalReview articlepeer-review

23 Scopus citations

Abstract

Femtosecond laser technology has attracted significant attention from the viewpoints of fundamental and application; especially femtosecond laser processing materials present the unique mechanism of laser-material interaction. Under the extreme nonequilibrium conditions imposed by femtosecond laser irradiation, many fundamental questions concerning the physical origin of the material removal process remain unanswered. In this review, cutting-edge ultrafast dynamic observation techniques for investigating the fundamental questions, including time-resolved pump-probe shadowgraphy, ultrafast continuous optical imaging, and four-dimensional ultrafast scanning electron microscopy, are comprehensively surveyed. Each technique is described in depth, beginning with its basic principle, followed by a description of its representative applications in laser-material interaction and its strengths and limitations. The consideration of temporal and spatial resolutions and panoramic measurement at different scales are two major challenges. Hence, the prospects for technical advancement in this field are discussed finally.

Original languageEnglish (US)
Article number032004
JournalInternational Journal of Extreme Manufacturing
Volume1
Issue number3
DOIs
StatePublished - Sep 2019

Keywords

  • 4D ultrafast scanning electron microscopy
  • Femtosecond laser manufacturing
  • Pump-probe shadowgraphy
  • Ultrafast continuous optical imaging
  • Ultrafast dynamics

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering

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