Characteristics of target interaction with high power UV laser radiation

B. Yaakobi, T. Boehly, P. Bourke, Y. Conturie, R. S. Craxton, J. Delettrez, J. M. Forsyth, R. D. Frankel, L. M. Goldman, R. L. McCrory, M. C. Richardson, W. Seka, D. Shvarts, J. M. Soures

Research output: Contribution to journalArticlepeer-review

57 Scopus citations

Abstract

Thermal conduction, mass ablation rate, pressure and preheat were investigated in the interaction of a frequency tripled Nd: glass laser of power 0.-0.2 TW with flat targets. In the range 1013-1015 W cm2 for 400 ps pulses we find: (a) thermal conduction may be described by a flux limiter f = 0.04 ± 0.01; (b) the mass abaltion rate depends on the incident laser irradiance as m ̂ = 4.4 × 105 (I/1014)0.53 g cm-2 s-1; (c) the pressure near the ablation surface increases approximately linearly with irradiance and is about 70 Mbar at 1015 W/cm2, and (d) preheat as evidenced by Kα X-ray line emission is significantly lower than in λ = 1.05 μm irradiation.

Original languageEnglish
Pages (from-to)175-179
Number of pages5
JournalOptics Communications
Volume39
Issue number3
DOIs
StatePublished - 1 Oct 1981
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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