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Journal Article

Dopant-Induced Ignition of Helium Nanodroplets in Intense Few-Cycle Laser Pulses

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Mikaberidze,  A.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Saalmann,  U.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Rost,  J. M.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Citation

Krishnan, S. R., Fechner, L., Kremer, M., Sharma, V., Fischer, B., Camus, N., et al. (2011). Dopant-Induced Ignition of Helium Nanodroplets in Intense Few-Cycle Laser Pulses. Physical Review Letters, 107(17): 173402.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0029-8BEB-2
Abstract
We demonstrate ultrafast resonant energy absorption of rare-gas doped He nanodroplets from intense few-cycle ( similar to 10 fs) laser pulses. We find that less than 10 dopant atoms "ignite'' the droplet to generate a nonspherical electronic nanoplasma resulting ultimately in complete ionization and disintegration of all atoms, although the pristine He droplet is transparent for the laser intensities applied. Our calculations at those intensities reveal that the minimal pulse length required for ignition is about 9 fs.