Transient absorption spectroscopic study on photothermal process and laser ablation of poly (N-vinylcarbazole) film

Hiroshi Fukumura, Kouji Hamano, Hiroshi Masuhara

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Nanosecond laser photolysis of poly(N-vinylcarbazole) film did not give any appreciable transient absorption above an excitation intensity of 25 mJ/cm2. Only a tail of the ground-state absorption was observed, which was analyzed to estimate the temperature below, at, and above laser ablation threshold (60 mJ/cm2). The temperature rise time was less than 50 ns, and the film cooled in a few microseconds. The maximum temperature attained at the excitation intensity just below the threshold was close to the decomposition temperature of the film.

Original languageEnglish
Pages (from-to)12110-12113
Number of pages4
JournalJournal of physical chemistry
Volume97
Issue number47
DOIs
Publication statusPublished - 1993 Jan 1

ASJC Scopus subject areas

  • Engineering(all)
  • Physical and Theoretical Chemistry

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