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Acoustic detection of microbubble formation induced by enhanced optical breakdown of silver/dendrimer nanocomposites

2003; American Institute of Physics; Volume: 82; Issue: 6 Linguagem: Inglês

10.1063/1.1544657

1520-8842

S.M. Milas, Jing Yong Ye, Theodore B. Norris, Lajos Balogh, James R. Baker, Kyle W. Hollman, Stanislav Emelianov, Matthew O’Donnell,

Electrohydrodynamics and Fluid Dynamics

We utilize a real-time acoustic technique, based on pulse-echo measurements to detect formation of microbubbles in an aqueous solution of a silver/dendrimer nanocomposite (DNC). Wave-field plots of successive recordings illustrate the generation and behavior of bubbles created by the optical breakdown process. A significant threshold reduction is achieved with DNC particles compared to its host dendrimer, enabling a diverse field of low-threshold breakdown applications.