Dynamics of femtosecond laser-induced shockwaves at a water/air interface using multiple excitation beams Vreugdenhil, Marnix ; van Oosten, Dries ; Hernandez-Rueda, Javier Abstract Publication: Optics Letters Pub Date: October 2018 DOI: 10.1364/OL.43.004899 Bibcode: 2018OptL...43.4899V