Control of amorphous solid water target morphology induced by deposition on a charged surface

Alexander Bespaly*, Indranuj Dey, Jenya Papeer, Assaf Shaham, Pavel Komm, Ibrahim Hadad, Gilad Marcus, Arie Zigler

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Microstructured targets demonstrate an enhanced coupling of high-intensity laser pulse to a target and play an important role in laser-induced ion acceleration. Here we demonstrate an approach that enables us to control the morphology of amorphous solid water (ASW) microstructured targets, by deposition of water vapor on a charged substrate, cooled down to 100 K. The morphology of the deposited ASW structures is controlled by varying the surface charge on the substrate and the pressure of water vapor. The obtained target is structured as multiple, dense spikes, confined by the charged area on the substrate, with increased aspect ratio of up to 5:1 and having a diameter comparable with the typical spot size of the laser focused onto the target.

Original languageAmerican English
Article numbere37
JournalHigh Power Laser Science and Engineering
Volume9
DOIs
StatePublished - 2021

Bibliographical note

Publisher Copyright:
© The Author(s), 2021.

Keywords

  • Amorphous solid water morphology
  • laser target
  • laser-driven acceleration

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