Nonlinear optical absorption in laser modified regions of fused silica substrates

Ardie D. Walser, Stavros G. Demos, Michael Etienne, Roger Dorsinville

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

The presence of strong nonlinear absorption has been observed in laser modified fused silica. Intensity-dependent transmission measurements using 355, 532 and 1064 nm laser pulses were performed in pristine polished regions in fused silica substrates and in locations that were exposed to dielectric breakdown. The experimental results suggest that multiphoton absorption is considerably stronger in the modified regions compared to pristine sites and is strongly dependent on the excitation wavelength.

Original languageEnglish (US)
Pages (from-to)417-421
Number of pages5
JournalOptics Communications
Volume240
Issue number4-6
DOIs
StatePublished - Oct 15 2004
Externally publishedYes

Keywords

  • Absorption
  • Nonlinear
  • Silica

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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