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The formation of stable products of water decomposition under laser exposure of aqueous colloidal solutions of nanoparticles is experimentally studied. Laser exposure of colloidal solutions leads to formation of H2, O2, and H2O2. The…

Chemical Physics · Physics 2017-07-14 E. V. Barmina , S. V. Gudkov , A. V. Simakin , G. A. Shafeev

Formation of molecular H2 and O2 is experimentally studied under laser exposure of water colloidal solution to radiation of a Nd:YAG laser at pulse duration of 10 ns and laser fluence in the liquid of order of 100 J/cm2. It is found the…

General Physics · Physics 2017-05-24 E. V. Barmina , A. V. Simakin , G. A. Shafeev

Laser exposure of suspension of either gold or palladium nanoparticles in aqueous solutions of UO2Cl2 of natural isotope abundance was experimentally studied. Picosecond Nd:YAG lasers at peak power from 1011 to 1013 W/cm2 at the wavelength…

General Physics · Physics 2015-05-14 A. V. Simakin , G. A. Shafeev

Initiation of nuclear reactions in Thorium nuclei is experimentally studied under laser exposure of Au nanoparticles suspended in the aqueous solution of Th(NO3)4 (232Th). It is found that the reaction pathway depends in which water, either…

General Physics · Physics 2010-01-21 A. V. Simakin , G. A. Shafeev

One-step laser generation of Au elongated nanoparticles (NPs) and their successive fragmentation and agglomeration are experimentally studied for the first time. In the present work, laser-assisted formation of Au elongated nanoparticles by…

The plasma-chemical process of producing hydrogen from propane under the excitation by laser radiation has been studied. The study was carried out using femtosecond (35 fs) and nanosecond (7 ns) pulsed laser radiation sources. Experimental…

Plasma Physics · Physics 2023-12-29 Yu. S. Tveryanovich , A. V. Povolotskiy , S. S. Lunkov

The ecologically best way to produce nanoparticles (NP) is based on laser ablation in liquid (LAL). In the considered here case the LAL means that a gold target is irradiated through transparent water. During and after irradiation the…

Computational Physics · Physics 2019-09-04 Yu. V. Petrov , N. A. Inogamov , V. V. Zhakhovsky , V. A. Khokhlov

Optical properties and morphology of laser generated Aluminum and Copper phthalocyanine nanoparticles (nAlPc and nCuPc) in water are experimentally studied. Near infrared laser source of nanosecond pulse duration was used for fragmentation…

General Physics · Physics 2019-04-12 I. I. Rakov , S. M. Pridvorova , G. A. Shafeev

We present an in-depth analysis of the energy dependence of optical breakdown in water by tightly focused laser pulses, from plasma formation to shock waves and cavitation. Laser pulses of fs to ns durations and UV to IR wavelengths are…

Fluid Dynamics · Physics 2026-01-16 Norbert Linz , Sebastian Freidank , Xiao-Xuan Liang , Alfred Vogel

Laser ablation through liquid is an important process that have to be studied for applications which use laser ablation in liquid (LAL) and laser shock peening (LSP). LAL is employed for production of suspensions of nanoparticles, while LSP…

Computational Physics · Physics 2019-10-22 N. A. Inogamov , V. A. Khokhlov , Yu. V. Petrov , V. V. Zhakhovsky

Understanding the formation and long-timescale evolution of atmospheric plasmas produced by ultrashort, long wavelength IR (LWIR) pulses is an important but partially understood problem. Of particular interest are plasmas produced in air…

Plasma Physics · Physics 2022-05-18 E. Welch , D. Matteo , S. Tochitsky , G. Louwrens , C. Joshi

Understanding the mechanisms of proton energy deposition in matter and subsequent damage formation is fundamental to radiation science. Here we exploit the picosecond (10^-12 s) resolution of laser-driven accelerators to track ultra-fast…

The irradiation of an atomic cluster with a femtosecond x-ray free-electron laser pulse results in a nanoplasma formation. This typically occurs within a few hundreds femtoseconds. By this time the x-ray pulse is over, and the direct…

Plasma Physics · Physics 2016-02-17 Vikrant Saxena , Beata Ziaja

Plasma kinetics of molecular hydrogen in the electrical discharge in Ar/CH3OH/H2O mixture is theoretically investigated for the first time. It is researched the dependence of [H2] on the breakdown field, the discharge power, solution…

Plasma Physics · Physics 2010-07-21 Dmitry Levko

Nanosecond and microsecond plasma-in liquid systems are explored to oxidize or regenerate a copper oxide surface in situ to serve as a catalyst for electrochemical CO$_2$ conversion. The plasma excitation generates H$_2$O$_2$ in the liquid,…

Plasma Physics · Physics 2025-05-14 P. Pottkämper , N. Unteregge , S. Weller , A. von Keudell

The laser induced plasma in liquid hasn't been studied enough. In liquid, the laser induced plasma may be able to resolve the hazardous material called the environment material. Then, the plasma produced in liquid by the laser light is…

Plasma Physics · Physics 2007-05-23 Jun Yamada , Norio Tsuda

The production of hydrogen from water using only a catalyst and solar energy is one of the most challenging and promising outlets for the generation of clean and renewable energy. Semiconductor photocatalysts for solar hydrogen production…

Time-resolved diagnostics were applied to investigate free-electron properties in nanosecond laser-produced discharges sustained at atmospheric pressure in Ar and in Ar with 3% H2O. The discharges were generated using 23 ns, 1064 nm laser…

Plasma Physics · Physics 2026-01-27 Ji Yung Ahn , Jianan Wang , Tasnim Akbar Faruquee , Marien Simeni Simeni

The extreme ultraviolet plasma emission from liquid microsized argon droplets exposed to intense near-infrared laser pulses has been investigated. Emission from the warm dense matter targets is recorded in a spectral range in between 16 and…

Atomic and Molecular Clusters · Physics 2018-01-17 R. Irsig , M. Shihab , L. Kazak , T. Bornath , J. Tiggesbäumker , R. Redmer , K. -H. Meiwes-Broer

This paper demonstrates the usefulness of pulsed laser ablation in liquids as a fast screening synthesis method able to prepare even complex compositions at the nanoscale. Nanoparticles of Y2O3:Eu3+, Lu2O2S: Eu3+, Gd2SiO5:Ce3+ and…

Materials Science · Physics 2009-10-08 Gilles Ledoux , David Amans , Christophe Dujardin , Karine Masenelli-Varlot
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