Parallel fabrication of silicon concave microlens array by femtosecond laser irradiation and mixed acid etching

2016 ◽  
Vol 14 (5) ◽  
pp. 052201-52205 ◽  
Author(s):  
An Pan An Pan ◽  
Tao Chen Tao Chen ◽  
Cunxia Li Cunxia Li ◽  
and Xun Hou and Xun Hou
Keyword(s):  
Femtosecond Laser ◽  
Laser Irradiation ◽  
Microlens Array ◽  
Femtosecond Laser Irradiation ◽  
Acid Etching ◽  
Mixed Acid

scholarly journals Fabrication of concave spherical microlenses on silicon by femtosecond laser irradiation and mixed acid etching

2014 ◽  
Vol 22 (12) ◽  
pp. 15245 ◽  
Author(s):  
An Pan ◽  
Bo Gao ◽  
Tao Chen ◽  
Jinhai Si ◽  
Cunxia Li ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Irradiation ◽  
Femtosecond Laser Irradiation ◽  
Acid Etching ◽  
Mixed Acid

Fabrication of through holes in silicon carbide using femtosecond laser irradiation and acid etching

2014 ◽  
Vol 289 ◽  
pp. 529-532 ◽  
Author(s):  
Vanthanh Khuat ◽  
Yuncan Ma ◽  
Jinhai Si ◽  
Tao Chen ◽  
Feng Chen ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Femtosecond Laser ◽  
Laser Irradiation ◽  
Femtosecond Laser Irradiation ◽  
Acid Etching

Uniform nano-ripples on the sidewall of silicon carbide micro-hole fabricated by femtosecond laser irradiation and acid etching

2014 ◽  
Vol 104 (24) ◽  
pp. 241907 ◽  
Author(s):  
Vanthanh Khuat ◽  
Tao Chen ◽  
Bo Gao ◽  
Jinhai Si ◽  
Yuncan Ma ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Femtosecond Laser ◽  
Laser Irradiation ◽  
Femtosecond Laser Irradiation ◽  
Acid Etching ◽  
Micro Hole

scholarly journals Fabrication of high-aspect-ratio grooves in silicon using femtosecond laser irradiation and oxygen-dependent acid etching

2013 ◽  
Vol 21 (14) ◽  
pp. 16657 ◽  
Author(s):  
An Pan ◽  
Jinhai Si ◽  
Tao Chen ◽  
Yuncan Ma ◽  
Feng Chen ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
Femtosecond Laser ◽  
Laser Irradiation ◽  
High Aspect Ratio ◽  
Femtosecond Laser Irradiation ◽  
Acid Etching

Surface Roughness of Ceramic-Resin Composites After Femtosecond Laser Irradiation, Sandblasting or Acid Etching and Their Bond Strength With and Without Silanization to a Resin Cement

2019 ◽  
Vol 44 (2) ◽  
pp. 156-167 ◽  
Author(s):  
Z Demirtag ◽  
AK Culhaoglu
Keyword(s):  
Surface Roughness ◽  
Femtosecond Laser ◽  
Bond Strength ◽  
Laser Irradiation ◽  
Hydrofluoric Acid ◽  
Failure Modes ◽  
Resin Cement ◽  
Femtosecond Laser Irradiation ◽  
Acid Etching ◽  
Resin Composites

SUMMARY Objectives: The aim of this study was to investigate the effects of femtosecond laser irradiation, sandblasting, or acid etching treatments on the surface roughness of ceramic-resin composites and also shear bond strength (SBS) with and without silanization to a resin cement. Methods: Samples of Vita Enamic (VE; Vita Zahnfabrik, Bad Säckingen, Germany) and Lava Ultimate (LU; 3M ESPE, Seefeld, Germany) were classified into control (no treatment), sandblasting, hydrofluoric acid, and femtosecond laser groups (n=30). Surface roughness was determined using two-dimensional contact profilometry. Surface topography was evaluated using a three-dimensional contact profilometer and a scanning electron microscope. Then groups were divided into two subgroups with similar surface roughness values, including control (C), control + silane (C-S), sandblasting (SB), sandblasting + silane (SB-S), hydrofluoric acid (HF), hydrofluoric acid + silane (HF-S), femtosecond laser (FS), and femtosecond laser + silane (FS-S) groups (n=15). Panavia F 2.0 resin cement was applied to the sample surfaces using an SDI SBS rig (SDI Limited, Bayswater, Australia). The SBS test was performed after water storage (24 h, 37°C) and thermocycles (2000 cycles, 5°C to 55°C), and failure modes were evaluated. Results: The highest surface roughness was observed in the FS group, and the highest SBS was observed in the FS-S group for both VE and LU (p<0.001). Silanization improved the SBS of VE significantly (p<0.001) in all surface treatments but did not improve that of LU except in the FS group (p=0.004). There was a significantly moderate negative correlation in the VE/SB group (p=0.012) and a moderate positive correlation in the VE/HF group (p=0.049). Conclusions: Femtosecond laser irradiation was found to be more effective than sandblasting or acid etching in increasing the surface roughness, and it was also the most effective surface treatment with silanization on the SBS of a resin cement to the ceramic-resin composites.

Fabrication of Micro-Grooves in Silicon Carbide Using Femtosecond Laser Irradiation and Acid Etching

2014 ◽  
Vol 31 (3) ◽  
pp. 037901 ◽  
Author(s):  
Khuat Vanthanh ◽  
Yun-Can Ma ◽  
Jin-Hai Si ◽  
Tao Chen ◽  
Feng Chen ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Femtosecond Laser ◽  
Laser Irradiation ◽  
Femtosecond Laser Irradiation ◽  
Acid Etching

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

scholarly journals Condensation of Si-rich region inside soda-lime glass by parallel femtosecond laser irradiation

2014 ◽  
Vol 22 (13) ◽  
pp. 16493 ◽  
Author(s):  
Masaaki Sakakura ◽  
Kouhei Yoshimura ◽  
Torataro Kurita ◽  
Masahiro Shimizu ◽  
Yasuhiko Shimotsuma ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Irradiation ◽  
Soda Lime ◽  
Femtosecond Laser Irradiation ◽  
Soda Lime Glass ◽  
Rich Region
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