**Effects of Different Laser Pulse Regimes (Nanosecond, Picosecond and Femtosecond) on the Ablation of Materials for Production of Nanoparticles in Liquid Solution**

Abubaker Hassan Hamad

Additional information is available at the end of the chapter

http://dx.doi.org/10.5772/63892

#### **Abstract**

Ultra-short laser pulse interaction with materials has received much attention from researchers in micro- and nanomachining, especially for the generation of nanoparti‐ cles in liquid environments, because of the straightforward method and direct application for organic solvents. In addition, the colloidal nanoparticles produced by laser ablation have very high purity—they are free from surfactants and reaction products or by-products. In this chapter, nanosecond, picosecond and femtosecond laser pulse durations are compared in laser material processing. Due to the unique properties of the short and ultra-short laser pulse durations in material processing, they are more apparent in the production of precision material processing and generation of nanoparticles in liquid environments.

**Keywords:** lasers, laser ablation, nanoparticles, pulse duration, nanosecond lasers, pi‐ cosecond lasers, femtosecond lasers
