• High Power Laser Science and Engineering
  • Vol. 9, Issue 3, 03000e37 (2021)
Alexander Bespaly1、2、*, Indranuj Dey2, Jenya Papeer2, Assaf Shaham2, Pavel Komm2, Ibrahim Hadad2, Gilad Marcus1, and Arie Zigler3
Author Affiliations
  • 1Department of Applied Physics, The Hebrew University of Jerusalem, Jerusalem, Israel
  • 2Department of Research and Development, HIL Applied Medical, Ltd., Jerusalem, Israel
  • 3Racah Institute of Physics, The Hebrew University of Jerusalem, Jerusalem, Israel
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    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.
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    Alexander Bespaly, Indranuj Dey, Jenya Papeer, Assaf Shaham, Pavel Komm, Ibrahim Hadad, Gilad Marcus, Arie Zigler. Control of amorphous solid water target morphology induced by deposition on a charged surface[J]. High Power Laser Science and Engineering, 2021, 9(3): 03000e37
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    Category: Research Articles
    Received: Nov. 26, 2020
    Accepted: Apr. 20, 2021
    Posted: Jul. 14, 2021
    Published Online: Jul. 14, 2021
    The Author Email: Alexander Bespaly (alex.bespaly@mail.huji.ac.il)