Self-organized surface patterns originating from femtosecond laser-induced instability

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This dissertation explores laser-induced periodic surface structures (LIPSS), or ripples, created by femtosecond laser pulses on various solid targets. The experimental findings, along with the striking resemblance of these structures to patterns arising from instabilities, suggest that femtosecond laser nanostructuring can be attributed to self-organized pattern formation due to laser-induced surface instability. The primary objective is to deepen the understanding of the fundamental processes involved in laser-matter interactions that lead to pattern formation through femtosecond laser ablation. This topic is significant for both fundamental and applied sciences. Gaining insight into the underlying physical mechanisms will enable better control over surface nanostructuring, which holds substantial application potential across numerous modern technologies. The research emphasizes the importance of understanding the physics behind surface structuring during femtosecond laser ablation, as it can significantly impact technological advancements in various fields.