펨토초 레이저에 의한 SUS 가공 특성 및 리플 생성

Ripple Formation and Polarization Effects in Femtosecond Laser Drilling

Ripple formation of femtosecond laser in stainless steel is investigated using 184 fs pulses with a center wavelength of 785 nm. The effect of the laser polarization relative to the translation direction is observed. For drilling with a certain aspect ratio, reflections at the hole walls take place, leading to a non-uniform intensity distribution deep inside the formed hole. Finally, it is shown that a circular polarization during the drilling process significantly improves the quality of the produced holes.

ABSTRACT

1. 서론

2. 실험 및 결과

3. 결론

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