Abstract

Molecular nanojets generated by sub-nanosecond pulsed laser irradiation have been observed under different conditions such as in glucose–water solutions with different viscosities and in salt-water solutions with different concentrations. Time-resolved shadowgraphy imaging of the molecular nanojets under the different conditions was performed. The molecular nanojets were ejected through the center of a cavitation bubble, which was generated by pulsed laser irradiation of the liquid. The speed and shape of the molecular nanojets and the size of the cavitation bubble changed markedly with the conditions. The speed of a molecular nanojet can be controlled by changing of the viscosity of the glucose–water solution and the concentration of the salt-water solution.

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