Material response during nanosecond laser induced breakdown inside of the exit surface of fused silica

Stavros G. Demos, Raluca A. Negres, Rajesh N. Raman, Alexander M. Rubenchik, Michael D. Feit

Research output: Contribution to journalArticle

65 Scopus citations

Abstract

The material response following nanosecond, UV laser induced breakdown inside of the exit surface of fused silica is investigated using multimodal time resolved microscopy. The study spans up to about 75 ns delay from the onset of material modification during the laser pulse through the observation of material ejection. A number of distinct processes were identified, including: a) the onset of optical absorption in the material arising from the buildup of an electronic excitation, b) the expansion of the hot modified region (plasma) along the surface and inside the bulk, c) the formation of radial and circumferential cracks, d) the swelling of the affected region on the surface and, e) the onset of ejection of material clusters at about 30 ns delay and its progression to a well-defined jet by about 75 ns delay. Limited theoretical modeling is used to aid the interpretation of the data.

Original languageEnglish (US)
Pages (from-to)444-452
Number of pages9
JournalLaser and Photonics Reviews
Volume7
Issue number3
DOIs
StatePublished - May 2013
Externally publishedYes

Keywords

  • Fused silica ablation
  • High-power laser optics
  • Laser induced damage
  • Surface laser damage

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials

Fingerprint Dive into the research topics of 'Material response during nanosecond laser induced breakdown inside of the exit surface of fused silica'. Together they form a unique fingerprint.

  • Cite this