High spatial frequency periodic structures formation on silicon using near UV femtosecond laser irradiation

2018 ◽  
Vol 112 (3) ◽  
pp. 032105 ◽  
Author(s):  
Rico S. Cahyadi ◽  
Ben Torralva ◽  
Steven M. Yalisove
Keyword(s):  
Femtosecond Laser ◽  
Spatial Frequency ◽  
Laser Irradiation ◽  
Periodic Structures ◽  
High Spatial Frequency ◽  
Femtosecond Laser Irradiation

scholarly journals Femtosecond laser irradiation on Nd:YAG crystal: Surface ablation and high-spatial-frequency nanograting

2018 ◽  
Vol 441 ◽  
pp. 372-380 ◽  
Author(s):  
Yingying Ren ◽  
Limu Zhang ◽  
Carolina Romero ◽  
Javier R. Vázquez de Aldana ◽  
Feng Chen
Keyword(s):  
Femtosecond Laser ◽  
Spatial Frequency ◽  
Laser Irradiation ◽  
Crystal Surface ◽  
High Spatial Frequency ◽  
Femtosecond Laser Irradiation ◽  
Surface Ablation ◽  
Nd:Yag Crystal

Submillimeter Micropart Feeding Along an Asymmetric Femtosecond-Laser-Microfabricated Surface

2009 ◽  
Vol 3 (2) ◽  
pp. 151-156 ◽  
Author(s):  
Atsushi Mitani ◽  
◽  
Shinichi Hirai ◽  
Keyword(s):  
Stainless Steel ◽  
Femtosecond Laser ◽  
Laser Irradiation ◽  
Periodic Structures ◽  
Friction Angle ◽  
Femtosecond Laser Irradiation ◽  
Laser Technology ◽  
Feed Velocity ◽  
Inclined Surfaces ◽  
The Relationship

Femtosecond laser technology forms minute, stable gratings on such materials as silicon and stainless steel. Forming a periodic structure on the surfaces of sliding parts improves tribology characteristics because adhesion decreases with reductions in area of contact. Double-pulsed femtosecond laser irradiation generates periodic structures with asymmetric profiles, along which, as we have shown elsewhere, microparts such as ceramic chip capacitors and resistors can be fed using simple symmetric planar vibration. Microparts move unidirectionally because they adhere to these surfaces asymmetrically. In testing the feasibility of feeding 0402 capacitors 0.4 × 0.2 × 0.2 mm in size and 0.1 mg weighting along an asymmetric surface fabricated using double-pulsed femtosecond laser irradiation, we evaluated differences in the profiles of the two inclined surfaces, effects of decreased adhesion, the forward and backward coefficient of friction, and the bidirectional friction angle of 0402 capacitors. Based on feed experimental results, we assessed the relationship between drive frequency and feed velocity and, by calculating variations in feed velocity, feed stability.

scholarly journals High spatial frequency periodic structures induced on metal surface by femtosecond laser pulses

2012 ◽  
Vol 20 (2) ◽  
pp. 905 ◽  
Author(s):  
Jian-Wu Yao ◽  
Cheng-Yun Zhang ◽  
Hai-Ying Liu ◽  
Qiao-Feng Dai ◽  
Li-Jun Wu ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Spatial Frequency ◽  
Metal Surface ◽  
Periodic Structures ◽  
High Spatial Frequency ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses

scholarly journals Self-organized periodic structures on Ge-S based chalcogenide glass induced by femtosecond laser irradiation

2012 ◽  
Vol 20 (28) ◽  
pp. 29882 ◽  
Author(s):  
S. H. Messaddeq ◽  
R. Vallée ◽  
P. Soucy ◽  
M. Bernier ◽  
M. El-Amraoui ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Irradiation ◽  
Chalcogenide Glass ◽  
Periodic Structures ◽  
Femtosecond Laser Irradiation ◽  
Self Organized

Sub-100 nm high spatial frequency periodic structures driven by femtosecond laser induced desorption in GaAs

2021 ◽  
Vol 118 (24) ◽  
pp. 242106
Author(s):  
Alex Sarracino ◽  
Abdul R. Ansari ◽  
Ben Torralva ◽  
Steven Yalisove
Keyword(s):  
Femtosecond Laser ◽  
Spatial Frequency ◽  
Periodic Structures ◽  
High Spatial Frequency

Generation of nano-bumps on transparent quartz glass surface under femtosecond laser irradiation

2008 ◽  
Author(s):  
Wei Guo ◽  
Zeng Bo Wang ◽  
Lin Li ◽  
Zhu Liu ◽  
Boris Luk’yanchuk ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Irradiation ◽  
Quartz Glass ◽  
Glass Surface ◽  
Femtosecond Laser Irradiation
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