Effect of wavelength on ablation mechanisms during CW laser irradiation: Argon versus Nd:YAG (1.32 μm)

Gerald L. LeCarpentier, Massoud Motamedi, Linda P. McMath, A. J. Welch

Research output: Contribution to journalConference article

4 Scopus citations

Abstract

Some of the wavelength-dependent physical phenomena associated with continuous wave (CW) laser ablation are studied. Porcine aortae were irradiated with CW argon and Nd:YAG (λ = 1.32 μm) lasers while high-speed video and infrared cameras were used to observe events occurring during the ablation process. Visual and thermal recordings both contain clear indications of the explosive nature of the process in air for both lasers. The results indicate that specific mechanisms involved in tissue dehydration, ablation onset, and subsequent burning are substantially dependent on the wavelength of the incident irradiation and the distribution of the chief chromophores within the tissue.

Original languageEnglish (US)
Pages (from-to)1209-1210
Number of pages2
JournalAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Volume11 pt 4
StatePublished - 1989
Externally publishedYes
EventImages of the Twenty-First Century - Proceedings of the 11th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 2 - Seattle, WA, USA
Duration: Nov 9 1989Nov 12 1989

ASJC Scopus subject areas

  • Signal Processing
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Health Informatics

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