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We study cavitation dynamics when focusing ring-shaped femtosecond laser beams in water. This focusing geometry reduces detrimental nonlinear beam distortions and enhances energy deposition within the medium, localized at the focal spot. We observe remarkable postcollapse dynamics of elongated cavitation bubbles with high-speed ejection of microbubbles out of the laser focal region. Bubbles are ejected along the laser axis in both directions (away and towards the laser). The initial shape of the cavitation bubble is also seen to either enhance or completely suppress jet formation during collapse. In the absence of jetting, microbubble ejection occurs orthogonal to the laser propagation axis.

Pertenece a



Faccio, D. -  Tamošauskas, G. -  Rubino, E. -  Darginavičius, J. -  Papazoglou, D. G. -  Tzortzakis, S. -  Couairon, A. -  Dubietis, A. - 

Id.: 70990830

Versión: 1.0

Estado: Final

Tipo de recurso: Articles  -  PeerReviewed  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

Requerimientos técnicos:  Browser: Any - 

Relación: [References] http://eprints.gla.ac.uk/157181/
[References] 10.1103/PhysRevE.86.036304

Fecha de contribución: 10-mar-2018


* Faccio, D. , Tamošauskas, G., Rubino, E., Darginavičius, J., Papazoglou, D. G., Tzortzakis, S., Couairon, A. and Dubietis, A. (2012) Cavitation dynamics and directional microbubble ejection induced by intense femtosecond laser pulses in liquids. Physical Review E , 86(3), 036304. (doi:10.1103/PhysRevE.86.036304 ) (PMID:23031010)

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