Self-guided propagation of femtosecond light pulses in water.
We report experimental evidence of self-guided propagation of femtosecond laser pulses in water. A light filament induced by 170-fs, 527-nm pulses has a diameter of 60 microm (at the 1/e2 level) and persists over a distance of 20 mm. The filamentary mode is sustained over a wide range of input power, and the energy excess is converted into conical emission. In the time domain, the pulse trapped in a filamentary mode experiences a number of splittings occurring in the early stage of filament formation.
Dubietis
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Department of Quantum Electronics, Vilnius University, Sauletekio Avenue 9, Building 3, LT-2040 Vilnius, Lithuania. audrius.dubietis@ff.vu.lt
Tamosauskas
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Diomin
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Varanavicius
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