[19p-B205-1~14] 4.3 Lasers and laser materials processing

4:00 PM - 4:15 PM JST(7:00 AM - 7:15 AM UTC)English Presentation

[19p-B205-7] Laser Parameters for Square-Hole Drilling with Femtosecond Polarized Beam

〇Wataru Watanabe¹, Kosuke Yoshina¹, Keiji Ebata², Hisao Kikuta³ (1.Ritsumeikan University, 2.Sumitomo Electric Industries, 3.Osaka Metropolitan University)

Keywords:

femtosecond laserprocessing,polarized beam,ablation

The polarization state of a laser beam has a strong influence on the process in almost any kind of laser material processing. Square holes are produced by controlling the intensity distribution and polarization distribution using polarization converters. We investigate the processing conditions for square hole processing using a polarization-converting element.