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Picosecond interferometry and analysis of pressure fields around nanosecond microdischarge filaments that develop in deionized water

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F20%3A00531273" target="_blank" >RIV/61389021:_____/20:00531273 - isvavai.cz</a>

  • Result on the web

    <a href="https://iopscience.iop.org/article/10.35848/1347-4065/ab75b6" target="_blank" >https://iopscience.iop.org/article/10.35848/1347-4065/ab75b6</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.35848/1347-4065/ab75b6" target="_blank" >10.35848/1347-4065/ab75b6</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Picosecond interferometry and analysis of pressure fields around nanosecond microdischarge filaments that develop in deionized water

  • Original language description

    This study investigated pressure fields that develop around nanosecond discharges produced in deionised water by fast rise-time positive high-voltage pulses (+100 kV, duration 10 ns) on a point electrode by means of laser interferometry with high spatial resolution (0.75 μm). The concept of the Mach-Zehnder interferometer was employed using Nd:YAG laser (532 nm, 30 ps). Changes in the liquid refractive index produced a shift in the fringes in interference patterns projected by the interferometer. High spatial resolution combined with the ultrafast laser source allowed the acquisition of interferometric images at any phase of the discharge evolution. Consequently, unique results were obtained that characterised pressure fields that develop due to the propagation of a single discharge filament. The peak pressure of 500 MPa was estimated at the shock front with a radius of 2 μm, the generating filament was invisible at this early stage. The shockwave amplitudes were probably voltage independent.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10305 - Fluids and plasma physics (including surface physics)

Result continuities

  • Project

    <a href="/en/project/GA18-04676S" target="_blank" >GA18-04676S: Fundamental phenomena of nanosecond discharge in liquid water</a><br>

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2020

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Japanese Journal of Applied Physics

  • ISSN

    0021-4922

  • e-ISSN

  • Volume of the periodical

    59

  • Issue of the periodical within the volume

    H

  • Country of publishing house

    JP - JAPAN

  • Number of pages

    9

  • Pages from-to

    SHHA08

  • UT code for WoS article

    000519637300009

  • EID of the result in the Scopus database

    2-s2.0-85083300096