[9p-N102-1~10] Frontiers in Advanced Laser Processing: Tracing 40 Years of Evolution and Future Prospects from Its Origins

4:15 PM - 4:40 PM JST(7:15 AM - 7:40 AM UTC)

[9p-N102-6] Nanoengineered Interfaces by Ultrashort Laser Pulses – from Surface Nanostructuring to Functionalization –

〇Godai Miyaji¹ (1.TUAT)

Keywords:

ultrafast laser pulse,laser material processing,nanoengineered Interfaces

Laser-Induced Periodic Surface Structures (LIPSS) have been an important research subject for understanding laser–matter interactions since their discovery in 1965. With the advent of femtosecond lasers, the characteristic dimensions of these structures were reduced to the nanometer scale, leading to the development of functional surface engineering technologies. The authors have elucidated the excitation mechanism of surface plasmon polaritons (SPPs) and the transient metallization of semiconductor surfaces under intense ultrashort laser irradiation, and have further demonstrated the formation of ultrafine nanostructures using few-femtosecond laser pulses. This presentation reviews the evolution of LIPSS research, highlights its applications to functional surfaces such as anti-reflective and wettability-controlled surfaces, and discusses future prospects for ultrashort-pulse laser-based nano-interface engineering.