Femtosecond laser applications in micro/nano science and technology: Nonlinear effects in photonic crystal fibers, femtosecond laser-induced forward transfer, and femtosecond laser manipulation system for biology

Abstract

A review of our recent work on applications of femtosecond laser in micro/nano science and technology is presented. In particular, we first discuss enhanced nonlinear effects generated by unamplified femtosecond pulse propagation in photonic crystal fibers, including supercontinuum generation, frequency conversion and soliton self-frequency shift. Following this, we show microdroplet deposition of copper thin film by laser-induced forward transfer using amplified femtosecond pulses. Finally, a femtosecond laser manipulation system for biological research is demonstrated, on which we have achieved femtosecond laser optical trapping, two-photon excitation, and femtosecond laser-induced cell fusion.