Atmospheric characterization for high-energy laser beam propagation in the maritime environment

2004 ◽  
Author(s):  
Steve Doss-Hammel ◽  
Dimitri Tsintikidis ◽  
Dave Merritt ◽  
Jim Fontana
Keyword(s):  
Laser Beam ◽  
Beam Propagation ◽  
High Energy ◽  
Laser Beam Propagation ◽  
Energy Laser ◽  
High Energy Laser ◽  
Maritime Environment

Mid-Infrared High Energy Laser Beam Sensor

2009 ◽  
Vol 36 (8) ◽  
pp. 1979-1985 ◽  
Author(s):  
杨鹏翎 Yang Pengling ◽  
冯国斌 Feng Guobin ◽  
王群书 Wang Qunshu ◽  
王振宝 Wang Zhenbao ◽  
程建平 Cheng Jianping
Keyword(s):  
Laser Beam ◽  
High Energy ◽  
Mid Infrared ◽  
Energy Laser ◽  
High Energy Laser

Three-Dimensional Finite Element Analysis of Melting in an Alloy Irradiated With a High Energy Laser Beam

2003 ◽  
Author(s):  
Bhavani Kasula ◽  
Pradip Majumdar
Keyword(s):  
Mathematical Model ◽  
Material Processing ◽  
Finite Element ◽  
Laser Beam ◽  
Molten Pool ◽  
Three Dimensional ◽  
High Energy ◽  
Convective Boundary ◽  
Energy Laser ◽  
High Energy Laser

Lasers are being widely used in the material processing industry lately. In this work, study is performed on the resluting temperature and stress distribution, the width and depth of the melt pool in the heat-affected zone during material processing with a high energy Gussian laser beam. A three-dimensional enthalphy-based mathematical model is developed to study the effect of high energy laser beam on the formation of molten pool. The mathematical model is based on a three-dimensional transient heat equation taking into consideration the power intensity of the Gussian laser beam and phase diagram of the material. A computational algorithm is implemented to evaluate the temperature distributions as well as shape and size of molten pool. The numerical solution with the applied heat flux and convective boundary conditions is obtained usign a 3-D finite element code.

Simulation of the interaction of a high energy laser beam with the sea surface in the short wavelength infrared

2019 ◽  
Vol 58 (29) ◽  
pp. 8126
Author(s):  
Frédéric Schwenger ◽  
Norbert Scherer-Negenborn ◽  
Katrin Braesicke
Keyword(s):  
Laser Beam ◽  
Short Wavelength ◽  
High Energy ◽  
Sea Surface ◽  
Energy Laser ◽  
High Energy Laser
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