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Author Pershin, Sergei M.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PLASMA PHYSICS AND FUSION TECHNOLOGY ♦ CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ♦ AIR ♦ ALUMINIUM ♦ DRILLING ♦ EFFICIENCY ♦ EXCITATION ♦ HOLES ♦ INTERACTIONS ♦ LASER RADIATION ♦ NEODYMIUM LASERS ♦ NONLINEAR PROBLEMS ♦ PLASMA ♦ PLATES ♦ PULSES ♦ SURFACES ♦ ELECTROMAGNETIC RADIATION ♦ ELEMENTS ♦ ENERGY-LEVEL TRANSITIONS ♦ FLUIDS ♦ GASES ♦ LASERS ♦ METALS ♦ RADIATIONS ♦ SOLID STATE LASERS
Abstract The efficiency of hole drilling in an aluminium plate was studied experimentally upon excitation of a plasma on its surface in air by a train of pulses from a Nd:YAG laser, the interval between pulses being 15-20 {mu}s. It was found that the crater depth increases nonmonotonically with each successive pulse of the train. A nonlinear, more than by a factor of six, increase in the depth was detected upon interaction of the second pulse with the target. The mechanism explaining this increase in the interaction efficiency of the second pulse in the train with the target is proposed. (interaction of laser radiation with matter)
ISSN 10637818
Educational Use Research
Learning Resource Type Article
Publisher Date 2009-01-31
Publisher Place United States
Journal Quantum Electronics
Volume Number 39
Issue Number 1


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