We report on the measurement of the pressure associated with a shock wave within a very thin layer (100 nm) in proximity of a boundarysurface. In the experiments, the shock wave was emitted by a cavitation bubble generated by a pulsed pump laser in water. We developed apump-probe setup based on the detection of the light scattered at the surface of a one-dimensional photonic crystal, which was purposelydesigned to sustain a surface electromagnetic wave in the visible range and to enhance the optical response. In order to better understand thephenomenon, we implemented numerical simulations to describe the light scattering intensity distributions through a modified Rayleigh’smethod. We report, with a LoD of about 0.1 MPa, the measurements of the pressure at a surface in the presence of a laser-induced cavitationbubble generated at different distances from the surface and for different pulse energies.

Cavitation bubble wall pressure measurement by an electromagnetic surface wave enhanced pump-probe configuration / Occhicone, Agostino; Sinibaldi, Giorgia; Danz, Norbert; Casciola, Carlo Massimo; Michelotti, Francesco. - In: APPLIED PHYSICS LETTERS. - ISSN 0003-6951. - 114:13(2019). [10.1063/1.5089206]

Cavitation bubble wall pressure measurement by an electromagnetic surface wave enhanced pump-probe configuration

Occhicone, Agostino
;
Sinibaldi, Giorgia;Casciola, Carlo Massimo;Michelotti, Francesco
2019

Abstract

We report on the measurement of the pressure associated with a shock wave within a very thin layer (100 nm) in proximity of a boundarysurface. In the experiments, the shock wave was emitted by a cavitation bubble generated by a pulsed pump laser in water. We developed apump-probe setup based on the detection of the light scattered at the surface of a one-dimensional photonic crystal, which was purposelydesigned to sustain a surface electromagnetic wave in the visible range and to enhance the optical response. In order to better understand thephenomenon, we implemented numerical simulations to describe the light scattering intensity distributions through a modified Rayleigh’smethod. We report, with a LoD of about 0.1 MPa, the measurements of the pressure at a surface in the presence of a laser-induced cavitationbubble generated at different distances from the surface and for different pulse energies.
2019
cavitation; bloch surface waves; photonic crystals
01 Pubblicazione su rivista::01a Articolo in rivista
Cavitation bubble wall pressure measurement by an electromagnetic surface wave enhanced pump-probe configuration / Occhicone, Agostino; Sinibaldi, Giorgia; Danz, Norbert; Casciola, Carlo Massimo; Michelotti, Francesco. - In: APPLIED PHYSICS LETTERS. - ISSN 0003-6951. - 114:13(2019). [10.1063/1.5089206]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1259781
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