Observation and control of shock waves in individual nanoplasmas.

  title={Observation and control of shock waves in individual nanoplasmas.},
  author={Daniel D. Hickstein and Franklin J Dollar and Jim A. Gaffney and Mark E. Foord and G. M. Petrov and Brett B. Palm and K. Ellen Keister and Jennifer L. Ellis and Chengyuan Ding and Stephen B. Libby and Jose L. Jimenez and Henry C. Kapteyn and Margaret M. Murnane and Wei Xiong},
  journal={Physical review letters},
  volume={112 11},
Using an apparatus that images the momentum distribution of individual, isolated 100-nm-scale plasmas, we make the first experimental observation of shock waves in nanoplasmas. We demonstrate that the introduction of a heating pulse prior to the main laser pulse increases the intensity of the shock wave, producing a strong burst of quasimonoenergetic ions with an energy spread of less than 15%. Numerical hydrodynamic calculations confirm the appearance of accelerating shock waves and provide a… Expand
Ultrafast Structural Dynamics of Nanoparticles in Intense Laser Fields.
Using wide-angle scattering with intense femtosecond x-ray pulses from a free-electron laser source, it is found that highly excited xenon nanoparticles retain their crystalline bulk structure and density in the inner core long after the driving NIR pulse. Expand
Optimizing laser-driven proton acceleration from overdense targets
We demonstrate how to tune the main ion acceleration mechanism in laser-plasma interactions to collisionless shock acceleration, thus achieving control over the final ion beam properties (e. g.Expand
Electronic oscillations in ionized sodium nanoclusters
Irradiation of nanosized metallic clusters by femtosecond laser pulses of moderate intensities () leads to creation of the so-called electron–ion nanoplasma with size-dependent properties. ElectronExpand
Signatures of transient resonance heating in photoemission from free NaCl nanoparticles in intense femtosecond laser pulses
Abstract The ionization dynamics of free NaCl nanoparticles of 70 nm mean diameter is studied in a one-color pump-probe experiment using intense near-infrared femtosecond laser pulses. We find aExpand
Relaxation and Collective Excitations of Cluster Nano-Plasmas
Nano-plasmas produced, e.g. in clusters after short-pulse laser irradiation, can show collective excitations as derived from the time evolution of fluctuations in thermodynamic equilibrium. MolecularExpand
Autoionization following nanoplasma formation in atomic and molecular clusters
Abstract Nanoplasmas resulting from the ionization of nano-scale particles by intense laser pulses are typically described by quasiclassical models, where electron emission is understood to takeExpand
Mapping nanoscale absorption of femtosecond laser pulses using plasma explosion imaging.
Four different nanoparticle samples with overall dimensions of ∼100 nm are studied and find that each sample exhibits distinct light absorption mechanisms despite their similar size, which demonstrates the diverse ways in which nanoparticles respond to strong laser fields. Expand
Plasma channel formation in NIR laser-irradiated carrier gas from an aerosol nanoparticle injector
The results indicate that field ionisation by the intense near-infrared laser pulse opens up a plasma channel behind the laser pulse, and can be understood in terms of a Coulomb explosion of the created underdense plasma channel. Expand
Field propagation-induced directionality of carrier-envelope phase-controlled photoemission from nanospheres
Near-fields of non-resonantly laser-excited nanostructures enable strong localization of ultrashort light fields and have opened novel routes to fundamentally modify and control electronicExpand
Femtosecond and nanometre visualization of structural dynamics in superheated nanoparticles
Single Xe clusters are superheated using an intense optical laser pulse and the structural evolution is imaged with a single X-ray pulse. Ultrafast surface softening on the nanometre scale isExpand


  • R. Rosenfeld
  • Medicine
  • Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery
  • 2009
I am writing with a simple plea to balance the voluminous articles about treatment in your journal with a modicum of information about nature and caring effects to rekindle the perception of physicians as healers, not only treaters, who relish the gifts of nature, and foster the humanistic aspect of medicine that has thrived for millennia. Expand
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