Optimum parameters for high-repetition rate femtosecond laser glass welding using an optical head with long focal length (Conference Presentation)

2018 ◽  
Author(s):  
Marion Gstalter ◽  
Grégoire Chabrol ◽  
Armel Bahouka ◽  
Kokou-Dodzi Dorkenoo ◽  
Jean-Luc Rehspringer ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Repetition Rate ◽  
Focal Length ◽  
High Repetition Rate ◽  
Laser Glass ◽  
Optical Head ◽  
High Repetition ◽  
Optimum Parameters

scholarly journals Long focal length high repetition rate femtosecond laser glass welding

2019 ◽  
Vol 58 (32) ◽  
pp. 8858
Author(s):  
Marion Gstalter ◽  
Grégoire Chabrol ◽  
Armel Bahouka ◽  
Kokou-Dodzi Dorkenoo ◽  
Jean-Luc Rehspringer ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Repetition Rate ◽  
Focal Length ◽  
High Repetition Rate ◽  
Laser Glass ◽  
High Repetition

High repetition rate (100 Hz), high peak power, high contrast femtosecond laser chain

2016 ◽  
Author(s):  
R. Clady ◽  
V. Tcheremiskine ◽  
Y. Azamoum ◽  
A. Ferré ◽  
L. Charmasson ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Repetition Rate ◽  
Peak Power ◽  
High Repetition Rate ◽  
High Peak ◽  
High Peak Power ◽  
High Contrast ◽  
High Repetition

High-repetition-rate femtosecond laser micromachining of poly(methyl methacrylate)

2015 ◽  
Vol 13 (7) ◽  
pp. 070003-70006 ◽  
Author(s):  
Yiming Luo Yiming Luo ◽  
Wei Jia Wei Jia ◽  
Youjian Song Youjian Song ◽  
Bowen Liu Bowen Liu ◽  
Minglie Hu Minglie Hu ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Methyl Methacrylate ◽  
Repetition Rate ◽  
Laser Micromachining ◽  
High Repetition Rate ◽  
Poly Methyl Methacrylate ◽  
High Repetition ◽  
Femtosecond Laser Micromachining

Surface ablation of poly allyl diglycol carbonate polymer using high-repetition-rate femtosecond laser

2020 ◽  
Vol 59 (05) ◽  
pp. 1
Author(s):  
Kok Bin Ng ◽  
Jing Wen Chew ◽  
Wu Yi Chong ◽  
Chin Seong Lim ◽  
Harith Ahmad
Keyword(s):  
Femtosecond Laser ◽  
Repetition Rate ◽  
High Repetition Rate ◽  
High Repetition ◽  
Surface Ablation

scholarly journals High-Repetition-Rate Femtosecond Laser Processing of Acrylic Intra-Ocular Lenses

Polymers ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 242 ◽  
Author(s):  
Daniel Sola ◽  
Rafael Cases
Keyword(s):  
Femtosecond Laser ◽  
Repetition Rate ◽  
Laser Processing ◽  
Refractive Index Change ◽  
Laser Pulses ◽  
Processing Parameters ◽  
High Repetition Rate ◽  
Femtosecond Laser Pulses ◽  
Periodic Patterns ◽  
High Repetition

The study of laser processing of acrylic intra-ocular lenses (IOL) by using femtosecond laser pulses delivered at high-repetition rate is presented in this work. An ultra-compact air-cooled femtosecond diode laser (HighQ2-SHG, Spectra-Physics) delivering 250 fs laser pulses at the fixed wavelength of 520 nm with a repetition rate of 63 MHz was used to process the samples. Laser inscription of linear periodic patterns on the surface and inside the acrylic substrates was studied as a function of the processing parameters as well as the optical absorption characteristics of the sample. Scanning Electron Microscopy (SEM) Energy Dispersive X-ray Spectroscopy (EDX), and micro-Raman Spectroscopy were used to evaluate the compositional and microstructural changes induced by the laser radiation in the processed areas. Diffractive characterization was used to assess 1st-order efficiency and the refractive index change.

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