Ultrafast multiphoton forest fires and fractals in clusters and dielectrics

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DOIResolve DOI: http://doi.org/10.1088/0953-4075/37/3/L04
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TypeArticle
Journal titleJournal Of Physics. B, Atomic, Molecular And Optical Physics
Volume37
PagesL57-L67
AbstractWe describe the interaction of ultrashort infrared laser pulses with clusters and dielectrics. Rapid ionization occurs on a sub-laser wavelength scale below the conventional breakdown threshold. It starts with the formation of nano-droplets of plasma which grow like forest fires, without any need for heating of the electrons promoted to the conduction band. The dimensionality of the damaged area can be fractal and changes during the laser pulse. This mechanism is operative in both rare gas clusters and dielectrics interacting with ultrashort, moderately intense laser pulses which include only several periods of the driving field, so that the traditional avalanche mechanisms have no time to develop.
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AffiliationNational Research Council Canada; NRC Steacie Institute for Molecular Sciences
Peer reviewedYes
NPARC number12338833
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Record identifier8ab2665e-9c57-416d-a167-929377bea1b3
Record created2009-09-11
Record modified2016-05-09
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