Whole life cycle of femtosecond ultraviolet filaments in water

Abstract : We present measurements fully characterizing the whole life cycle of femtosecond pulses undergoing filamentation in water at 400 nm. The complete pulse dynamics is monitored by means of a four-dimensional mapping technique for the intensity distribution I(x,y,z,t) during the nonlinear interaction. Measured events (focusing or defocusing cycles, pulse splitting and replenishment, supercontinuum generation, conical emission, nonlinear absorption peaks) are mutually connected.The filament evolution from laser energy deposition in water, which is of paramount importance for a wide range of technological and medical applications, is interpreted in light of simulation results.
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Submitted on : Wednesday, February 18, 2015 - 3:29:14 PM
Last modification on : Wednesday, July 3, 2019 - 10:48:04 AM

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Amélie Jarnac, Gintaras Tamosauskas, Donatas Majus, Aurélien Houard, André Mysyrowicz, et al.. Whole life cycle of femtosecond ultraviolet filaments in water. Physical Review A, American Physical Society, 2014, 89, pp.033809. ⟨10.1103/PhysRevA.89.033809⟩. ⟨hal-01118152⟩

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