scholarly journals Laser Intensity Profile Effects on the Solidification Microstructure of Ti-6Al-4V and Ti-5553

2018 ◽  
Author(s):  
Jacob C. Ramme ◽  
Tien T. Roehling ◽  
John D. Roehling ◽  
Joseph T. McKeown ◽  
Manyalibo J. Matthews
Keyword(s):  
Laser Intensity ◽  
Intensity Profile ◽  
Solidification Microstructure

Effects of the Laser Intensity Profile on Ignition of Hydrogen-Air Mixture

2021 ◽  
Author(s):  
Albina Tropina ◽  
Sagar Pokharel ◽  
Mikhail N. Shneider
Keyword(s):  
Laser Intensity ◽  
Intensity Profile

scholarly journals Influence of laser beam intensity profile on propagation dynamics of laser-blow-off plasma plume

2010 ◽  
Vol 28 (3) ◽  
pp. 387-392 ◽  
Author(s):  
Ajai Kumar ◽  
Sony George ◽  
R.K. Singh ◽  
V.P.N. Nampoori
Keyword(s):  
Plasma Plume ◽  
Laser Intensity ◽  
Imaging Technique ◽  
Intensity Profile ◽  
Fast Imaging ◽  
Geometrical Shape ◽  
Laser Beam Intensity ◽  
Gaussian Profile ◽  
Removal Processes

AbstractEffect of intensity profile of the ablating laser on the dynamics of laser-blow-off (LBO) plume has been studied by fast imaging technique. This work emphasizes the geometrical aspect of the LBO plume, which is an important parameter for various applications. Visualization of the expanding plume reveals that geometrical shape and directionality (divergence) of the plume are highly dependent on the laser intensity profile. Present results demonstrate that the Gaussian profile laser produces a well-collimated, low divergence plasma plume as compared to the plume formed by a top-hat profile laser. The sequence of film removal processes is invoked to explain the role of energy density profile of the ablating laser in LBO mechanism.

Current advances in smoothing of laser intensity profile

2008 ◽  
Vol 163 (4-6) ◽  
pp. 307-315 ◽  
Author(s):  
R. Benocci ◽  
D. Batani ◽  
R. Dezulian ◽  
R. Redaelli ◽  
G. Lucchini ◽  
...  
Keyword(s):  
Laser Intensity ◽  
Intensity Profile
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