Time-resolved ultraviolet-visible absorption spectroscopic study on femtosecond KrF laser ablation of liquid benzyl chloride

Koji Hatanaka, Tamitake Itoh, Tsuyoshi Asahi, Nobuyuki Ichinose, Shunichi Kawanishi, Tsuneo Sasuga, Hiroshi Fukumura, Hiroshi Masuhara

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

A time-resolved absorption spectroscopy system with an intense femtosecond KrF laser has been constructed and applied to liquid benzyl chloride under conditions of laser ablation. It has been directly confirmed over a wide fluence range that benzyl radical was formed immediately after excitation. In addition to the decay of benzyl radical, scattering of a probe light pulse was observed after ~1-2 ns at higher fluences, which was ascribed to morphological changes; the threshold was determined to be 30 mJ cm-2. The femtosecond KrF laser ablation molecular dynamics of liquid benzyl chloride is well explained in terms of a photochemical mechanism.

Original languageEnglish
Pages (from-to)727-733
Number of pages7
JournalChemical Physics Letters
Volume300
Issue number5-6
DOIs
Publication statusPublished - 1999 Feb 12

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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