Cavitation-Free Continuous-Wave Laser Ablation from a Solid Target to Synthesize Low-Size-Dispersed Gold Nanoparticles

ChemPhysChem ◽  
2017 ◽  
Vol 18 (9) ◽  
pp. 1185-1191 ◽  
Author(s):  
Alexey O. Kucherik ◽  
Yury V. Ryabchikov ◽  
Stella V. Kutrovskaya ◽  
Ahmed Al-Kattan ◽  
Sergei M. Arakelyan ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Laser Ablation ◽  
Continuous Wave ◽  
Solid Target ◽  
Continuous Wave Laser ◽  
Wave Laser ◽  
Dispersed Gold

Histological difference between pulsed wave laser and continuous wave laser in endovenous laser ablation

2014 ◽  
Vol 30 (6) ◽  
pp. 429-434 ◽  
Author(s):  
Rei Kansaku ◽  
Naoki Sakakibara ◽  
Atsushi Amano ◽  
Hisako Endo ◽  
Takashi Shimabukuro ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Energy Density ◽  
Continuous Wave ◽  
Short Pulse ◽  
Thermal Relaxation ◽  
Continuous Wave Laser ◽  
Invasive Treatment ◽  
Vein Wall ◽  
Endovenous Laser Ablation ◽  
Wave Laser

Background Endovenous laser ablation to saphenous veins has been popular as a minimally invasive treatment for chronic venous insufficiency. However, adverse effects after endovenous laser ablation using continuous wave laser still remain. Pulsed wave with enough short pulse duration and sufficiently long thermal relaxation time may avoid the excess energy delivery, which leads to the perforation of the vein wall. Method (1) Free radiation: Laser is radiated in blood for 10 s. (2) Endovenous laser ablation: Veins were filled with blood and placed in saline. Endovenous laser ablations were performed. Results (1) There were clots on the fiber tips with continuous wave laser while no clots with pulsed wave laser. (2) In 980-nm continuous wave, four of 15 specimens had ulcers and 11 of 15 had perforation. In 1470-nm continuous wave with 120 J/cm of linear endovenous energy density, two of three presented ulcers and one of three showed perforation. In 1470-nm continuous wave with 60 J/cm of linear endovenous energy density, two of four had ulcers and two of four had perforation. In 1320-nm pulsed wave, there were neither ulcers nor perforation in the specimens. Conclusions While endovenous laser ablation using continuous wave results in perforation in many cases, pulsed wave does not lead to perforation.

Continuous wave laser for tailoring the photoluminescence of silicon nanoparticles produced by laser ablation in liquid

2017 ◽  
Vol 122 (11) ◽  
pp. 113107 ◽  
Author(s):  
Dusan M. Popovic ◽  
Akihiro Kushima ◽  
Milena I. Bogdanovic ◽  
Jong Seo Chai ◽  
Becko Kasalica ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Silicon Nanoparticles ◽  
Continuous Wave ◽  
Continuous Wave Laser ◽  
Laser Ablation In Liquid ◽  
Wave Laser

Design and preparation of composite coatings with increased reflectivity under high-energy continuous wave laser ablation

2020 ◽  
Vol 46 (15) ◽  
pp. 23457-23462
Author(s):  
Weiye Xu ◽  
Lihong Gao ◽  
Chen Ma ◽  
Zhuang Ma ◽  
Taotao Wu ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Continuous Wave ◽  
Composite Coatings ◽  
High Energy ◽  
Continuous Wave Laser ◽  
Wave Laser

Continuous wave laser ablation of tissue: analysis of thermal and mechanical events

1993 ◽  
Vol 40 (2) ◽  
pp. 188-200 ◽  
Author(s):  
G.L. LeCarpentier ◽  
M. Motamedi ◽  
L.P. McMath ◽  
S. Rastegar ◽  
A.J. Welch
Keyword(s):  
Laser Ablation ◽  
Continuous Wave ◽  
Tissue Analysis ◽  
Continuous Wave Laser ◽  
Wave Laser
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