We demonstrate theoretically and experimentally gradient-force induced nanoparticle shock waves forming in dense colloidal suspensions. These 'spear-shaped' wavefronts allow locally concentrating and transporting masses of particles in the fluid.
© 2012 OSA
E. Greenfield, M. Segev, R. El-Ganainy, and D. N. Christodoulides, "Light-Induced Shock Waves in Dense Colloidal Suspensions," in Conference on Lasers and Electro-Optics 2012, OSA Technical Digest (Optical Society of America, 2012), paper QW3E.2.
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