[14p-C31-1~13] 3.7 Laser processing

△ [14p-C31-7] Femtosecond laser multi-photon reduction in TiO₂ nanoparticle dispersed solution

〇Kan Umetsu¹, Hiroaki Nishiyama¹ (1.Gad. Yamagata Univ.)

Keywords:femtosecond laser, multi-photon reduction, titanium oxide

We report femtosecond laser multi-photon reduction in silver nitrate solution with TiO₂ nanoparticles. Doping of TiO₂ nanoparticle into the solution strongly enhanced precipitation volume because of their high photo-activity. Optical observation revealed that the precipitation occurred not only the focal point but also the surroundings. In this presentation, we show the effects of laser irradiation conditions on size of the precipitated structures.