Jaka Mur (Avtor), Fabian Reuter (Avtor), Jernej Jan Kočica (Avtor), Žiga Lokar (Avtor), Jaka Petelin (Avtor), Vid Agrež (Avtor), Claus-Dieter Ohl (Avtor), Rok Petkovšek (Avtor)

Povzetek

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.

Ključne besede

cavitation;laser breakdown;shock wave;laser illumination;fiber-optic hydrophone;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FS - Fakulteta za strojništvo
UDK: 621.9.048.7
COBISS: 123292163 Povezava se bo odprla v novem oknu
ISSN: 1094-4087
Št. ogledov: 151
Št. prenosov: 63
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: kavitacija;laserski preboj;udarni val;lasersko osvetljevanje;vlakenski merilnik tlaka;
Vrsta dela (COBISS): Članek v reviji
Strani: str. 37664-37674
Letnik: ǂVol. ǂ30
Zvezek: ǂno. ǂ21
Čas izdaje: 2022
DOI: 10.1364/OE.470695
ID: 16596565