Water-window x-ray emission from laser-produced Au plasma under optimal target thickness and focus conditions

Wang, Jiahao; Kishimoto, Maki; Johzaki, Tomoyuki; Kumeda, Tomoaki; Higashiguchi, Takeshi; Sunahara, A.; Ohiro, Hikari; Yamasaki, K.; Namba, Shinichi

doi:10.1103/physreve.107.065211

Phys. Rev. E

2023

DOI: 10.1103/physreve.107.065211

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Water-window x-ray emission from laser-produced Au plasma under optimal target thickness and focus conditions

Jiahao Wang

Maki Kishimoto

Tomoyuki Johzaki

et al.

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2024

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Cited by 2 publications

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Characterization of experimental and simulated micrometer-scale soft x-ray-emitting laser plasmas: Toward predictive radiance calculations

Mongey,

de Lange,

Brady

et al. 2024

Applied Physics Letters

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Experimentally generated and simulated soft x-ray plasma images and spectra from 1064 nm-driven laser-produced plasmas from slab tin are presented. Produced are small, micrometer-scale emission volumes with principle imaged emission lying between 1.2 and 2.5 nm. Experimental images of the soft x-ray emission of these plasmas are generated using a pinhole imaging system, which enables spatial characterization of the plasmas, and a simple transmission grating spectrometer with a 100 nm pitch grating is used to facilitate the spectral characterization of these plasmas. Plasmas are simulated under similar experimental conditions to those used with the single-fluid, single-temperature radiation-hydrodynamics code RALEF-2D. Coupling the simulation output with optical modeling methods demonstrates its promise as a capability for modeling the spatial and spectral behavior of soft x-ray-emitting tin plasmas at such scales and laser energies.

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Characterization of experimental and simulated micrometer-scale soft x-ray-emitting laser plasmas: Toward predictive radiance calculations

Mongey,

de Lange,

Brady

et al. 2024

Applied Physics Letters

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Power-Law Scaling Relating the Average Charge State and Kinetic Energy in Expanding Laser-Driven Plasmas

Sheil,

Poirier,

Lassise

et al. 2024

Phys. Rev. Lett.

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A universal power-law scaling z¯∝E0.4 in the correlation between the average ion charge state z¯ and kinetic energy E in expanding laser-driven tin plasmas is identified. Universality here refers to an insensitivity to all experimental conditions: target geometry, expansion direction, laser wavelength, and power density. The power law is accurately captured in an analytical consideration of the dependence of the charge state on temperature and the subsequent transfer of internal to kinetic energy in the expansion. These analytical steps are individually, and collectively, validated by a two-dimensional radiation-hydrodynamic simulation of an expanding laser-driven plasma. This power-law behavior is expected to hold also for dense plasma containing heavier, complex ions such as those relevant to current and future laser-driven plasma light sources. Published by the American Physical Society 2024

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Water-window x-ray emission from laser-produced Au plasma under optimal target thickness and focus conditions

Cited by 2 publications

References 42 publications

Characterization of experimental and simulated micrometer-scale soft x-ray-emitting laser plasmas: Toward predictive radiance calculations

Characterization of experimental and simulated micrometer-scale soft x-ray-emitting laser plasmas: Toward predictive radiance calculations

Power-Law Scaling Relating the Average Charge State and Kinetic Energy in Expanding Laser-Driven Plasmas

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