Laser Ablation of Optically Thin Absorbing Liquid Layer Predeposited onto a Transparent Solid Substrate

S. I. Kudryashov, K. Lyon, S. D. Shukla, D. Murry, S. D. Allen

Research output: Contribution to journalArticlepeer-review

Abstract

Ablation of optically thin liquid 2-propanol layers of variable thickness on IR-transparent solid Si substrate by a nanosecond CO 2 laser has been experimentally studied using time-resolved optical interferometric and microscopy techniques. Basic ablation parameters - threshold fluences for surface vaporization and explosive homogeneous boiling of the superheated liquid, ablation depths, vaporization (ablation) rates, and characteristic ablation times versus laser fluence - were measured as a function of alcohol layer thickness. The underlying ablation mechanisms, their thermodynamics, and microscopic details are discussed.

c 2006 American Institute of Physics

Original languageAmerican English
JournalJournal of Applied Physics
Volume100
DOIs
StatePublished - Sep 1 2006
Externally publishedYes

Keywords

  • ablation parameters
  • superheated liquid
  • time-resolved optical interferometry
  • vaporization rates
  • carbon dioxide lasers
  • interferometry
  • laser ablation
  • optical microscopy
  • substrates
  • vaporization
  • thin films

Disciplines

  • Physics

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