Volume 72, Number 3, November 2005
|Page(s)||376 - 382|
|Section||Atomic and molecular physics|
|Published online||30 September 2005|
Absorption of few-cycle laser pulses by outer ionization of atomic clusters
Institute of Theoretical Physics A, Rheinisch Westfälische Technische Hochschule D-52056 Aachen, Germany
Accepted: 13 September 2005
Laser light absorption is studied by particle simulations for large atomic clusters interacting with intense few-cycle pulses. A significant part of absorbed energy can be attributed to the potential energy required for outer ionization. A simple shell model accounts for the ionization degree and the ionization potential. High absorption fractions are obtained for clustered gases under common experimental conditions.
PACS: 36.40.Gk – Plasma and collective effects in clusters / 52.38.Dx – Laser light absorption in plasmas (collisional, parametric, etc.) / 52.65.-y – Plasma simulation
© EDP Sciences, 2005
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