研究目的
Investigating the effects of a thin water film on the efficiency and quality of glass ablation using a picosecond laser.
研究成果
The application of a thin flowing water film significantly improved the ablation efficiency and quality of glass cutting with a picosecond laser, especially under conditions of high pulse overlap or multi-scan cutting. The water film facilitated debris removal, reduced edge chipping, and produced almost taper-free cut lines, making it highly effective for applications requiring large material removal.
研究不足
The study was limited to soda-lime glass sheets and a specific laser configuration (532 nm, 100 kHz). The effects of varying water film thickness and other environmental conditions were not explored.
1:Experimental Design and Method Selection:
The study utilized a diode-pumped ND:YVO4 solid-state laser generating 10 ps duration pulses at 532 nm wavelength with a repetition rate of 100 kHz. An airbrush was used to apply a thin flowing water film on the glass surface during ablation.
2:Sample Selection and Data Sources:
Commercially available
3:5 mm thick soda-lime-glass sheets were used. List of Experimental Equipment and Materials:
The setup included a laser system, an electro-optical shutter, a galvanometer scanner, an airbrush for water application, and microscopes for analysis.
4:Experimental Procedures and Operational Workflow:
Single scan grooves and complete cutting of glass were performed under both ambient air and water-assisted conditions.
5:Data Analysis Methods:
The quality of ablation was analyzed using optical and scanning electron microscopes, and the volume of laser-processed grooves was determined with an optical profiler.
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Optical microscope
BX51
Olympus
Analyzing laser ablation quality
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Scanning electron microscope
JSM-6490LV
JEOL
Imaging the ablated samples
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ND:YVO4 solid-state laser
Ekspla
Generating 10 ps duration pulses for laser ablation
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Electro-optical shutter
ScanLab
Controlling the laser beam
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Galvanometer scanner
HurrySCAN 14
Directing the laser beam
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F-theta lens
80 mm focal length
Focusing the laser beam
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Sputter coater
Q150T ES
Quorum
Coating samples with gold for SEM imaging
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Optical profiler
Sensofar
Determining the volume of laser-processed grooves
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