Pump-probe X-ray holographic imaging of laser-induced cavitation bubbles with femtosecond FEL pulses.

ABSTRACT: Cavitation bubbles can be seeded from a plasma following optical breakdown, by focusing an intense laser in water. The fast dynamics are associated with extreme states of gas and liquid, especially in the nascent state. This offers a unique setting to probe water and water vapor far-from equilibrium. However, current optical techniques cannot quantify these early states due to contrast and resolution limitations. X-ray holography with single X-ray free-electron laser pulses has now enabled a quasi-instantaneous high resolution structural probe with contrast proportional to the electron density of the object. In this work, we demonstrate cone-beam holographic flash imaging of laser-induced cavitation bubbles in water with nanofocused X-ray free-electron laser pulses. We quantify the spatial

SUBMITTER: Vassholz M 

PROVIDER: S-EPMC8187368 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature