Abstract
We investigate the properties of microjets in the context of film-free laser induced forward transfer in the femtosecond and picosecond regimes. The influence of the pulse duration (ranging from 0.4 to 12ps) and the energy (ranging from 6 to 12μJ) is systematically studied on the height, diameter, speed, volume, and shape of the jets. The 400fs pulses generate thin and stable jets compatible with bioprinting, while 14ps pulses generate more unstable jets. A pulse duration around 8ps seems, therefore, to be an interesting trade-off to cover many bio-applications of microjets generated by lasers.
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