Journal
LASER PHYSICS LETTERS
Volume 16, Issue 2, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1612-202X/aaf6a1
Keywords
laser ablation in liquids; nanowires; superfluid helium
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Funding
- Russian Science Foundation [18-19-00620]
- Russian Science Foundation [18-19-00620] Funding Source: Russian Science Foundation
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Under laser ablation of metals into superfluid helium (He II), in contrast to the widely used laser ablation in all other liquids, the main product of condensation is thin nanowires. In this case, however, the faults as the inclusions in the wire core of the spherical nanoparticles, similar to those which are condensation products in ordinary liquids, take place. It has been shown experimentally that the rotation of a reactor with He II, together with the replacement of laser target above the He II surface dramatically improves the structure of nanowires such produced and increases their length. Such behavior is explained both by the regularization of the array of vortices in the rotating He II and by the reducing the local density of the metal in liquid helium when the laser target is located in a gas.
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