Laser processing by using fluidic laser beam shaper

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• 作者：Hong Duc Doan ; Iwatani Naoki ; Fushinobu Kazuyoshi
• 关键词：Laser drilling ; Fluidic laser beam shaper ; Beam profile ; Flat-top beam ; Annular beam
• 刊名：International Journal of Heat and Mass Transfer
• 出版年：2013
• 出版时间：September, 2013
• 年：2013
• 卷：64
• 期：Complete
• 页码：263-268
• 全文大小：2428 K

文摘

Laser beam shaping techniques are important to optimize a large number of laser material processing applications and laser-material interaction studies. The authors have developed a novel Fluidic Laser Beam Shaper (FLBS) with merits such as flexibility, versatility and low cost. This work presents a fundamentally new approach for laser beam shaping by using FLBS. A Gaussian beam profile is transformed to a flat top beam and an annular beam profile in the focal plane. The shaped laser beam is used for laser drilling to investigate the influence of the laser intensity profile in laser processing. The paper concludes with suggestions for future research and potential applications for further the work.