Laser ablation dynamics of organic molecular materials by nanosecond spectroscopic, photographic, and interferometric methods

Hiroshi Fukumura, Hiroshi Furutani, Hiroshi Masuhara

Research output: Contribution to conferencePaper

Abstract

Laser ablation dynamics of polymer films doped with biphenyl and pyrene was investigated by applying nanosecond spectroscopic, photographic, and interferometric methods. The transient molecular species responsible to ablation was concluded to be excited states which absorb 248 nm photons repetitively during the laser pulse; cyclic multiphotonic absorption. Dynamics of submicron expansion and contraction of polymer films was measured by nanosecond interferometry even below the ablation threshold. New features of laser ablation are clarified.

Original languageEnglish
Pages479-481
Number of pages3
Publication statusPublished - 1996
EventProceedings of the 1996 IS&T 49th Annual Conference - Minneapolis, MN, USA
Duration: 1996 May 191996 May 24

Other

OtherProceedings of the 1996 IS&T 49th Annual Conference
CityMinneapolis, MN, USA
Period96/5/1996/5/24

ASJC Scopus subject areas

  • Engineering(all)

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    Fukumura, H., Furutani, H., & Masuhara, H. (1996). Laser ablation dynamics of organic molecular materials by nanosecond spectroscopic, photographic, and interferometric methods. 479-481. Paper presented at Proceedings of the 1996 IS&T 49th Annual Conference, Minneapolis, MN, USA, .