2025/03/13 by Jet Lem, Lem, Jet, Yun Kai +9
Engineering · Mathematics · #Applied Physics (physics.app-ph) #Computational Fluid Dynamics and Aerodynamics #FOS: Physical sciences #Fluid Dynamics (physics.flu-dyn) #Gas Dynamics and Kinetic Theory #Plasma and Flow Control in Aerodynamics
paper · pdf · doi:10.48550/arxiv.2504.00326
openalex publication_date 2025/03/13 · openalex created_date 2025/10/07 · openalex updated_date 2026/07/31
Exploring shock-shock interactions has been limited by experimental constraints, particularly in laser-induced shock experiments due to specialized equipment requirements. Herein, we introduce a tabletop approach to systematically investigate the excitation and superposition of dual laser-induced shock waves in water. Utilizing two laser pulses, spatio-temporally separated and focused into a confined water layer, we identify the optimal superposition leading to the highest combined shock pressure. Our results demonstrate that combining two shock waves each of ∼0.6~GPa pressure yields an overall shock pressure of ∼3~GPa. Our findings, suggesting an inherent nonlinear summation from the laser excitation process itself and highlights a new pathway for energy-efficient laser shock wave excitation.