Precise and efficient surface flattening of polycrystalline diamond by normal-irradiated trochoidal femtosecond laser machining

2022 ◽  
Vol 74 ◽  
pp. 456-464
Author(s):  
Tianye Jin ◽  
Dehui Liu ◽  
Junyun Chen ◽  
Teng Zhao ◽  
Chunyu Zhang
Keyword(s):  
Femtosecond Laser ◽  
Polycrystalline Diamond ◽  
Laser Machining ◽  
Surface Flattening

Research on ultrasonic vibration aided femtosecond laser machining process of transparent materials

2015 ◽  
Author(s):  
Yutang Dai ◽  
Bin Liu ◽  
Guanglin Yin ◽  
Tao Li ◽  
Joseph M. Karanja
Keyword(s):  
Femtosecond Laser ◽  
Ultrasonic Vibration ◽  
Machining Process ◽  
Laser Machining ◽  
Transparent Materials

scholarly journals Dry-etching-assisted femtosecond laser machining (Laser Photonics Rev. 11(3)/2017)

2017 ◽  
Vol 11 (3) ◽  
pp. 1770032
Author(s):  
Xue-Qing Liu ◽  
Qi-Dai Chen ◽  
Kai-Min Guan ◽  
Zhuo-Chen Ma ◽  
Yan-Hao Yu ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Dry Etching ◽  
Laser Machining

Femtosecond Laser Machining At Submicron And Nano Scale

2021 ◽  
Author(s):  
Alireza. Dalili
Keyword(s):  
Femtosecond Laser ◽  
Laser Machining ◽  
Nano Scale

Femtosecond Laser Machining At Submicron And Nano Scale

Coherent control of phonon-polaritons in a terahertz resonator fabricated with femtosecond laser machining

2004 ◽  
Vol 29 (22) ◽  
pp. 2671 ◽  
Author(s):  
David W. Ward ◽  
Jaime D. Beers ◽  
T. Feurer ◽  
Eric R. Statz ◽  
Nikolay S. Stoyanov ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Coherent Control ◽  
Laser Machining ◽  
Phonon Polaritons

Non-Diaphragm Fiber Gas Pressure Sensor Based on Femtosecond Laser Machining

2019 ◽  
Vol 56 (10) ◽  
pp. 100601
Author(s):  
姜源 Jiang Yuan ◽  
江毅 Jiang Yi ◽  
张柳超 Zhang Liuchao ◽  
王素梅 Wang Sumei
Keyword(s):  
Femtosecond Laser ◽  
Pressure Sensor ◽  
Gas Pressure ◽  
Laser Machining

scholarly journals Effect of Laser Pulse Overlap and Scanning Line Overlap on Femtosecond Laser-Structured Ti6Al4V Surfaces

Materials ◽  
2020 ◽  
Vol 13 (4) ◽  
pp. 969 ◽  
Author(s):  
Georg Schnell ◽  
Ulrike Duenow ◽  
Hermann Seitz
Keyword(s):  
Laser Pulse ◽  
Femtosecond Laser ◽  
Surface Topography ◽  
Cell Attachment ◽  
Surface Structures ◽  
Laser Source ◽  
Laser Machining ◽  
Scanning Strategy ◽  
Wide Range ◽  
Scanning Line

Surface structuring is a key factor for the tailoring of proper cell attachment and the improvement of the bone-implant interface anchorage. Femtosecond laser machining is especially suited to the structuring of implants due to the possibility of creating surfaces with a wide variety of nano- and microstructures. To achieve a desired surface topography, different laser structuring parameters can be adjusted. The scanning strategy, or rather the laser pulse overlap and scanning line overlap, affect the surface topography in an essential way, which is demonstrated in this study. Ti6Al4V samples were structured using a 300 fs laser source with a wavelength of 1030 nm. Laser pulse overlap and scanning line overlap were varied between 40% and 90% over a wide range of fluences (F from 0.49 to 12.28 J/cm²), respectively. Four different main types of surface structures were obtained depending on the applied laser parameters: femtosecond laser-induced periodic surface structures (FLIPSS), micrometric ripples (MR), micro-craters, and pillared microstructures. It could also be demonstrated that the exceedance of the strong ablation threshold of Ti6Al4V strongly depends on the scanning strategy. The formation of microstructures can be achieved at lower levels of laser pulse overlap compared to the corresponding value of scanning line overlap due to higher heat accumulation in the irradiated area during laser machining.

scholarly journals Investigation of the Material Removal Efficiency During Femtosecond Laser Machining

Procedia CIRP ◽  
2012 ◽  
Vol 3 ◽  
pp. 471-476 ◽  
Author(s):  
P. Stavropoulos ◽  
K. Efthymiou ◽  
G. Chryssolouris
Keyword(s):  
Femtosecond Laser ◽  
Removal Efficiency ◽  
Material Removal ◽  
Laser Machining
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