Near infrared femtosecond laser ablation of urinary calculi in water

2009 ◽  
Author(s):  
Jinze Qiu ◽  
Joel M. Teichman ◽  
Roman V. Kuranov ◽  
Austin B. McElroy ◽  
Tianyi Wang ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Femtosecond Laser ◽  
Near Infrared ◽  
Urinary Calculi ◽  
Femtosecond Laser Ablation

scholarly journals Selective induction of targeted cell death and elimination by near-infrared femtosecond laser ablation

2020 ◽  
Vol 24 ◽  
pp. 100818
Author(s):  
Kazunori Okano ◽  
Chung-Han Wang ◽  
Zhen-Yi Hong ◽  
Yoichiroh Hosokawa ◽  
Ian Liau
Keyword(s):  
Cell Death ◽  
Laser Ablation ◽  
Femtosecond Laser ◽  
Near Infrared ◽  
Femtosecond Laser Ablation

scholarly journals Near-Infrared Femtosecond Laser Ablation of Au-Coated Ni: Effect of Organic Fluids and Water on Crater Morphology, Ablation Efficiency and Hydrodynamic Properties of NiAu Nanoparticles

Materials ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 5544
Author(s):  
Niusha Lasemi ◽  
Günther Rupprechter ◽  
Gerhard Liedl ◽  
Dominik Eder
Keyword(s):  
Laser Ablation ◽  
Femtosecond Laser ◽  
Near Infrared ◽  
Defect Formation ◽  
Fatigue Cracks ◽  
Residual Effect ◽  
Femtosecond Laser Ablation ◽  
Laser Target ◽  
Ablation Efficiency ◽  
Crater Morphology

Scanning electron microscopy (SEM) and profilometry of the crater morphology and ablation efficiency upon femtosecond laser ablation of Au-coated Ni targets in various fluids revealed a pronounced dependence on the ablation medium. For ethanol, a sufficient ablation efficiency was obtained, whereas for 2-butanol a higher efficiency indicated stronger laser–target interaction. Hierarchical features in the crater periphery pointed to asymmetrical energy deposition or a residual effect of the Coulomb-explosion-initiating ablation. Significant beam deviation in 2-butanol caused maximum multiple scattering at the crater bottom. The highest values of microstrain and increased grain size, obtained from Williamson–Hall plots, indicated the superposition of mechanical stress, defect formation and propagation of fatigue cracks in the crater circumference. For n-hexane, deposition of frozen droplets in the outer crater region suggested a femtosecond-laser-induced phase explosion. A maximum ablation depth occurred in water, likely due to its high cooling efficiency. Grazing incidence micro X-ray diffraction (GIXRD) of the used target showed residual carbon and partial surface oxidation. The produced nanoparticle colloids were examined by multiangle dynamic light scattering (DLS), employing larger scattering angles for higher sensitivity toward smaller nanoparticles. The smallest nanoparticles were obtained in 2-butanol and ethanol. In n-hexane, floating carbon flakes originated from femtosecond-laser-induced solvent decomposition.

scholarly journals Ridge waveguide lasers in Nd:GGG crystals produced by swift carbon ion irradiation and femtosecond laser ablation

2012 ◽  
Vol 20 (9) ◽  
pp. 9763 ◽  
Author(s):  
Yuechen Jia ◽  
Ningning Dong ◽  
Feng Chen ◽  
Javier R. Vázquez de Aldana ◽  
Sh. Akhmadaliev ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Femtosecond Laser ◽  
Ion Irradiation ◽  
Femtosecond Laser Ablation ◽  
Ridge Waveguide ◽  
Carbon Ion ◽  
Waveguide Lasers ◽  
Ridge Waveguide Lasers
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