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Formation of plasma from pure and polymer-doped water ice during intense laser irradiation

A. MATEI1,2, J. SCHOU1,* , K. RODRIGO3, M. DINESCU2, R. PEDRYS4

Affiliation

  1. Department of Photonics Engineering, Risø Campus, Technical University of Denmark, DK-4000 Roskilde, Denmark
  2. National Institute for Laser, Plasma and Radiation Physics, PO Box MG–16 Magurele, RO-077125 Bucharest, Romania
  3. Fuel Cells and Solid State Chemistry Department, Risø National Laboratory, Technical University of Denmark, DK-4000 Roskilde, Denmark
  4. Institute of Physics, Jagiellonian University, PL-30 019 Krakow, Poland

Abstract

Ice produced from ultrapure water or with 1 % polyethylene glycol (PEG) was irradiated by laser light with fluences between 2 and 80 J/cm2 in the ultraviolet (UV) regime at 355 nm and in the infrared (IR) regime at 1064 nm. The laser light induces a visible plasma above a fluence of 3.5 J/cm2 in the UV regime and above 8.5 J/cm2 in the IR regime. The ions from the plasma plume were studied by a Langmuir probe. The behavior of the plasma current can be understood in terms of ionization breakdown at the ice surface..

Keywords

Plasma, ablation plume, Water ice, PEG, MAPLE.

Submitted at: March 1, 2008
Accepted at: July 10, 2008

Citation

A. MATEI, J. SCHOU, K. RODRIGO, M. DINESCU, R. PEDRYS, Formation of plasma from pure and polymer-doped water ice during intense laser irradiation, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 8, pp. 1927-1932 (2008)