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Multi-frame multi-exposure shock wave imaging and pressure measurementsMur, Jaka ...Shock wave visual detection was traditionally performed using streak cameras, limited to homogeneous shock wave emission, with the corresponding shock wave pressure measurements available at rather ... large distances or numerically estimated through equation of state for water. We demonstrate a multi-frame multi-exposure shock wave velocity measurement technique for all in-plane directions of propagation, based on custom-built illumination system allowing multiple illumination pulses within each frame at multi-MHz frame rates and at up to 200 MHz illumination pulse repetition frequency at sub-nanosecond pulse durations. The measurements are combined and verified using a fiber-optic probe hydrophone, providing independent shock wave pressure and time-of-flight measurements, creating a novel all-optical measurement setup. The measured pressures at distances around 100 µm from the plasma center exceed 500 MPa, while camera-based measurements at even shorter distances indicate pressures above 1 GPa.Source: Optics express [Elektronski vir]. - ISSN 1094-4087 (Vol. 30, no. 21, 2022, str. 37664-37674)Type of material - article, component partPublish date - 2022Language - englishCOBISS.SI-ID - 123292163
Author
Mur, Jaka |
Reuter, Fabian |
Kočica, Jernej Jan |
Lokar, Žiga |
Petelin, Jaka |
Agrež, Vid |
Ohl, Claus-Dieter |
Petkovšek, Rok, fizik
Topics
cavitation |
laser breakdown |
shock wave |
laser illumination |
fiber-optic hydrophone |
kavitacija |
laserski preboj |
udarni val |
lasersko osvetljevanje |
vlakenski merilnik tlaka
source: Optics express [Elektronski vir]. - ISSN 1094-4087 (Vol. 30, no. 21, 2022, str. 37664-37674)
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Mur, Jaka | 37953 |
Reuter, Fabian | |
Kočica, Jernej Jan | 52343 |
Lokar, Žiga | 37513 |
Petelin, Jaka | 35427 |
Agrež, Vid | 32091 |
Ohl, Claus-Dieter | |
Petkovšek, Rok, fizik | 15646 |
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