Infrared long nanosecond laser pulse ablation of silicon: Integrated two-dimensional modeling and time-resolved experimental study

2012 ◽  
Vol 258 (19) ◽  
pp. 7766-7773 ◽  
Author(s):  
Sha Tao ◽  
Yun Zhou ◽  
Benxin Wu ◽  
Yibo Gao
Keyword(s):  
Experimental Study ◽  
Laser Pulse ◽  
Nanosecond Laser Pulse ◽  
Nanosecond Laser ◽  
Two Dimensional ◽  
Time Resolved ◽  
Dimensional Modeling

Time-resolved current response of a nanosecond laser pulse illuminated STM tip

1999 ◽  
Vol 68 (6) ◽  
pp. 637-641 ◽  
Author(s):  
J. Jersch ◽  
F. Demming ◽  
I. Fedotov ◽  
K. Dickmann
Keyword(s):  
Laser Pulse ◽  
Nanosecond Laser Pulse ◽  
Nanosecond Laser ◽  
Current Response ◽  
Time Resolved

Experimental study of the critical point region of aluminum under the action of the powerful nanosecond laser pulse

2015 ◽  
Vol 12 (12) ◽  
pp. 125401
Author(s):  
E B Cherepetskaya ◽  
A A Karabutov ◽  
A G Kaptilniy ◽  
D M Ksenofontov ◽  
V A Makarov ◽  
...  
Keyword(s):  
Experimental Study ◽  
Laser Pulse ◽  
Critical Point ◽  
Nanosecond Laser Pulse ◽  
Nanosecond Laser

scholarly journals Time-resolved measurements of the response of a STM tip upon illumination with a nanosecond laser pulse

1998 ◽  
Vol 66 (6) ◽  
pp. 615-619 ◽  
Author(s):  
J. Boneberg ◽  
M. Tresp ◽  
M. Ochmann ◽  
H.-J. Münzer ◽  
P. Leiderer
Keyword(s):  
Laser Pulse ◽  
Nanosecond Laser Pulse ◽  
Nanosecond Laser ◽  
Time Resolved ◽  
Time Resolved Measurements

Experimental study of a millimeter-sized Ga-In drop ablated by a nanosecond laser pulse

2021 ◽  
Vol 33 (12) ◽  
pp. 122102
Author(s):  
Yanchu Liu ◽  
Lihao Gao ◽  
Tianqi Zhai ◽  
Chenghao Xu ◽  
Hui Tang ◽  
...  
Keyword(s):  
Experimental Study ◽  
Laser Pulse ◽  
Nanosecond Laser Pulse ◽  
Nanosecond Laser

Time-Resolved Experimental Study of Silicon Carbide Ablation by Infrared Nanosecond Laser Pulses

2011 ◽  
Vol 133 (2) ◽  
Author(s):  
Yibo Gao ◽  
Yun Zhou ◽  
Benxin Wu ◽  
Sha Tao ◽  
Ronald L. Jacobsen ◽  
...  
Keyword(s):  
Experimental Study ◽  
Silicon Carbide ◽  
Laser Pulse ◽  
Material Removal ◽  
Laser Pulses ◽  
Nanosecond Laser ◽  
Removal Mechanism ◽  
Material Removal Mechanism ◽  
Time Resolved ◽  
Nanosecond Laser Pulses

Silicon carbide, due to its unique properties, has many promising applications in optics, electronics, and other areas. However, it is difficult to micromachine using mechanical approaches due to its brittleness and high hardness. Laser ablation can potentially provide a good solution for silicon carbide micromachining. However, previous studies of silicon carbide ablation by nanosecond laser pulses at infrared wavelengths are very limited on material removal mechanism, and the mechanism has not been well understood. In this paper, experimental study is performed for silicon carbide ablation by 1064 nm and 200 ns laser pulses through both nanosecond time-resolved in situ observation and laser-ablated workpiece characterization. This study shows that the material removal mechanism is surface vaporization, followed by liquid ejection (which becomes clearly observable at around 1 μs after the laser pulse starts). It has been found that the liquid ejection is very unlikely due to phase explosion. This study also shows that the radiation intensity of laser-induced plasma during silicon carbide ablation does not have a uniform spatial distribution, and the distribution also changes very obviously when the laser pulse ends.

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