Pulse duration dependence of ablation threshold for fused silica in the visible femtosecond regime

E. Terasawa, T. Shibuya, D. Satoh, Y. Moriai, H. Ogawa, M. Tanaka, R. Kuroda, Y. Kobayashi, K. Sakaue, M. Washio

Research output: Contribution to journalArticle

Abstract

In this study, we investigated the variation of the femtosecond pulse duration of the threshold fluence of fused silica by a single-shot irradiation at a wavelength of 400 nm. The single-shot threshold fluence was obtained from the relationship between the crater area based on the crater shape and the irradiation fluence. The crater shape was divided into two affected regimes depending on the pulse duration and the laser fluence. The crater depth and each threshold fluence for the corresponding two affected regimes were also measured. We have found that shorter pulse duration provides more energy-efficient results.

Original languageEnglish
Article number446
JournalApplied Physics A: Materials Science and Processing
Volume126
Issue number6
DOIs
Publication statusPublished - 2020 Jun 1

Keywords

  • Ablation threshold
  • Femtosecond laser
  • Fused silica
  • Laser ablation
  • Pulse duration dependence
  • Visible wavelength

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)

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    Terasawa, E., Shibuya, T., Satoh, D., Moriai, Y., Ogawa, H., Tanaka, M., Kuroda, R., Kobayashi, Y., Sakaue, K., & Washio, M. (2020). Pulse duration dependence of ablation threshold for fused silica in the visible femtosecond regime. Applied Physics A: Materials Science and Processing, 126(6), [446]. https://doi.org/10.1007/s00339-020-03640-0