Abstract
The inhomogeneous heating effect caused by picosecond laser irradiation to colloidal particles will form nanoparticles as a byproduct. A method is therefore needed for controlling the particle heating process to suppress byproduct formation through partial evaporation. In this work, we used a burst-mode laser to control the temperature increase of irradiated particles by modifying the burst pulse. Consequently, fewer nanoparticle byproducts formed as the number of burst pulses was increased because the heat distribution by particles was homogenized during the pulse interval. Burst pulse heating suppressed the inhomogeneous particle heating and particle-evaporation-induced byproduct formation.
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