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| Date : 2012/10/15, Hit : 916 |
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| 제목 |
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[세미나] Ultrashort pulse laser materials processing – Status and perspectives |
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| 작성자 |
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S.H.Cho |
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| 화일 |
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광응용기계연구실에서는 독일 Jena 의 Friedrich-Schiller 대학 Institute of Applied Physics 의 Ultrafast optics group 을 이끌고 있는 Stefan Nolte 교수를 모시고 극초단 펄스 레이저 미세 가공의 현황과 전망 및 독일 내의 극초단 펄스 레이저 개발 및 가공 연구 activities를 소개하는 초청 강연을 개최합니다. 레이저를 이용한 미세 가공에 관심 있으신 분들의 참석을 부탁드립니다.
- 일시: 10/16(화) 오전 10시30분
- 장소: 한국기계연구원 본관동(연구1동) 2층 회의실
- 세미나 제목: Ultrashort pulse laser materials processing – Status and perspectives
- 연사: Prof. Dr. Stefan Nolte (Friedrich-Schiller-University Jena)
- 초록: Ultrashort pulses have attracted great interest for the fabrication of precise microstructures, since thermal and mechanical damage can be minimized [1]. This is not only restricted to metals; interesting applications can also be found for the volume processing of transparent materials [2]. However, for a broad industrial use the processing speed has to be increased significantly. Novel ultrafast laser systems promise to provide sufficient power for such an increase, however for the scaling of the process speed a detailed understanding of the laser ablation process at these conditions is required, too [3].
In this presentation the fundamentals of the interaction process are discussed. This provides the basis for investigations on scaling the processing speed by increasing the laser repetition rate and average power [4]. Specifically the investigation of ultrashort pulse laser deep drilling will be discussed. Here, the drilling progress is directly visualized by using crystalline silicon as target material [5].
Additionally, an overview on current research activities in Germany with respect to ultrashort pulse micromachining including laser development will be given.
감사합니다.
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