Results 281 to 290 of about 5,376,921 (346)

Experimental investigation on laser ablation of C/SiC composites subjected to supersonic airflow

Optics and Laser Technology, 2019
Continuous wave laser ablation behavior of C/SiC composites subjected to supersonic airflow, as well as in static air environment, is investigated experimentally.
Jiangtao Wang, Yuzhao Ma, Yuwen Liu, Wu Yuan, Hongwei Song, Chenguang Huang, Xiaowei Yin   +6 more
semanticscholar   +1 more source

Excimer Laser Lens Ablation

Archives of Ophthalmology, 1987
To the Editor. —The article by Nanevicz et al,1in the December 1986 issue of theArchives, is of interest, as we also have an interest in the concept of using pulsed ultraviolet (UV) radiation for the removal of cataractous lenses. We agree with the authors that there are "significant challenges in developing an appropriate endocular delivery system ...
P E, Bath, G, Mueller, D J, Apple, R, Brems   +3 more
openaire   +2 more sources

Laser ablation mechanism of silicon nitride with nanosecond and picosecond lasers

Optics and Laser Technology, 2019
Silicon nitride (Si3N4) has exceptional mechanical, thermal and chemical properties and is therefore, advantageous for many applications. However, the employment of Si3N4 is impeded by the high finishing cost.
B. Soltani, B. Azarhoushang, Ali Zahedi
semanticscholar   +1 more source

Numerical simulation on nanosecond laser ablation of titanium considering plasma shield and evaporation-affected surface thermocapillary convection

, 2019
Nanosecond laser ablation of metal is a complicated process, which consists of many strongly coupled physical phenomena, including material heating, melting, evaporation, vapour dynamics, and plasma shield.
Zhaoxuan Yan, X. Mei, Wenjun Wang, A. Pan, Qingyan Lin, Chenchen Huang   +5 more
semanticscholar   +1 more source

Infrared laser bone ablation

Lasers in Surgery and Medicine, 1988
AbstractThe bone ablation characteristics of five infrared lasers, including three pulsed lasers (Nd:YAG, λ = 1,064 μm; Hol:YSGG, λ = 2.10 μm; and Erb:YAG, λ = 2.94 μm) and two continuous‐wave lasers (Nd:YAG, λ = 1.064 μm; and CO2, λ = 10.6 μm), were studied.
R C, Nuss, R L, Fabian, R, Sarkar, C A, Puliafito   +3 more
openaire   +2 more sources

Superresolved femtosecond laser ablation

Optics Letters, 2007
The determinist behavior of the femtosecond ablation process allows morphing features well under the diffraction limit by utilizing the thresholding effect, down to the nanometer scale. Because there are a vast range of applications where scaling down the size of the features is a major concern, we investigate the use of superresolving pupil plane ...
MERANO, MICHELE, BOYER G, TRISORIO A, CHERIAUX G, MOUROU G.   +4 more
openaire   +3 more sources

Laser trabecular ablation (LTA)

Lasers in Surgery and Medicine, 1991
AbstractAs part of a pilot study for glaucoma surgery, the use of 3 infrared solid state lasers with 4 fiber optic delivery systems to ablate human trabecular meshwork was investigated. Laser trabecular ablation (LTA) was attempted with the Erbium:YAG (2.94 μm), Erbium:YSGG (2.79 μm), and Holmium:YSGG (2.1 μm) lasers.
R A, Hill, G, Baerveldt, S A, Ozler, M, Pickford, G A, Profeta, M W, Berns   +5 more
openaire   +2 more sources

Laser Ablation and Laser-Hybrid Ablation Processes: A Review

Materials and Manufacturing Processes, 2015
Laser beam machining (LBM) has proven its applications and advantages over almost all the range of engineering materials. It offers its competences from macro-machining to micro- and nano-machining of simple-to-complex shapes. The hybrid approaches in laser ablation have demonstrated much improved results in terms of material removal rate, surface ...
Naveed Ahmed, Saied Darwish, Abdulrehman M. Alahmari   +2 more
openaire   +1 more source

High efficiency femtosecond laser ablation with gigahertz level bursts

Journal of laser applications, 2019
The authors report on a simple and easy-to-use GHz amplified femtosecond laser source. The laser source is based on a passively mode-locked oscillator with a near GHz repetition rate.
G. Bonamis, Konstantin Mishchick, É. Audouard, C. Hönninger, E. Mottay, John J. Lopez, I. Manek-Hönninger   +6 more
semanticscholar   +1 more source

The effect of laser ablation treatment on the chemistry, morphology and bonding strength of CFRP joints

International Journal of Adhesion and Adhesives, 2018
The strength of carbon fiber reinforced polymer (CFRP) adhesive-bonded joints can be greatly improved by laser ablation treatment, which modifies the surface physicochemical properties.
Chengcheng Sun, J. Min, Jianping Lin, Hailang Wan, Shanglu Yang, Shuang Wang   +5 more
semanticscholar   +1 more source