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Laser heating of an optical fiber
Applied Optics, 1976For use in absorption measurements in low-attenuation glass fibers, we calculate the periodic temperature rise at the surface of a glass cylinder heated by a chopped laser beam. Specifically, we give the mean temperature, setting the operating temperature of the experiment, and the peak-to-peak temperature, determining the sensitivity of the ...
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15th Aerospace Sciences Meeting, 1977
Since the suggestion by Dawson, Hertzberg, and Kidder that high-energy CO/sub 2/ lasers could be used to heat magnetically confined plasma columns to thermonuclear temperatures, a great deal of theoretical and experimental work has been performed. In this paper we first review the experiments on the basic laser-plasma interaction phenomena, in which ...
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Since the suggestion by Dawson, Hertzberg, and Kidder that high-energy CO/sub 2/ lasers could be used to heat magnetically confined plasma columns to thermonuclear temperatures, a great deal of theoretical and experimental work has been performed. In this paper we first review the experiments on the basic laser-plasma interaction phenomena, in which ...
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Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366), 2003
Recently, interest has developed in pulsed heating effects on a copper surface. Pulsed heating is one of the limits on the gradient of a structure based linac. The heat generated by an intense RF pulse on the metal surface can result in hundreds of degrees of temperature rise at 1 GeV/m.
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Recently, interest has developed in pulsed heating effects on a copper surface. Pulsed heating is one of the limits on the gradient of a structure based linac. The heat generated by an intense RF pulse on the metal surface can result in hundreds of degrees of temperature rise at 1 GeV/m.
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Tribology International, 1978
Abstract This paper reviews recent developments in the application of high power lasers to materials processing technology. The use of fine beams of laser energy to modify the surface properties of metallic materials is described in detail with specific emphasis on transformation hardening, surface alloying, and laser glazing.
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Abstract This paper reviews recent developments in the application of high power lasers to materials processing technology. The use of fine beams of laser energy to modify the surface properties of metallic materials is described in detail with specific emphasis on transformation hardening, surface alloying, and laser glazing.
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Heat front propagation in femtosecond-laser-heated solids
Physical Review E, 1995The formation and propagation of heat fronts produced by an intense femtosecond-laser pulse are examined in numerical simulations which treat self-consistently laser absorption, thermal conduction, and hydrodynamics. The results revealed that the initial heat front is dictated by laser absorption as an evanescent wave.
, Ng, , Forsman, , Celliers
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Laser droplet heating: fast and slow heating regimes
Applied Optics, 1989The heating of a laser-irradiated droplet is analyzed theoretically and numerically by solving the heat transport equation. Two regimes of droplet heating are considered, slow and fast heating. In the slow heating regime, the thermal diffusion term plays an important role and the droplet may not experience explosive vaporization during the lifetime of ...
B S, Park, R L, Armstrong
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Journal of Ship Production, 1987
Many shipyards now employ line-heating processes to form metal by controlled heating and cooling. The benefits of line-heat forming include improved accuracy and productivity. The current line-heating method utilizes an oxyacetylene torch as the heat input. A new forming technique that uses a high-power laser as the heat source is being researched. The
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Many shipyards now employ line-heating processes to form metal by controlled heating and cooling. The benefits of line-heat forming include improved accuracy and productivity. The current line-heating method utilizes an oxyacetylene torch as the heat input. A new forming technique that uses a high-power laser as the heat source is being researched. The
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Semicollisional heat flux in laser heated plasmas
Physics of Plasmas, 2002The semicollisional transport theory in laser heated plasmas is presented. The Fokker–Planck equation that includes the electron–electron interaction up to the first anisotropy is solved numerically for arbitrary collisionality range. The inverse bremsstrahlung absorption of the laser energy by the electrons is taken into account.
A. Tahraoui, A. Bendib
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Anomalous ion heating in a laser heated plasma
Plasma Physics, 1973Computer experiments and theoretical arguments suggest that ions in a laser heated plasma can be heated directly by laser induced plasma instabilities. This may explain the large neutron yields seen in some experiments involving the focusing of nanosecond laser pulses onto solid deuterium targets.
S E Bodner, G F Chapline, J DeGroot
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Pulse Laser Heating of Blood Vessels
Therapeutic Laser Applications and Laser-Tissue Interactions II, 2005A computer model of blood vessel heating by pulse laser irradiation incident on the upper skin layer (epidermis) is suggested. The model is a multilayered half-infinite structure. The depths, optical (absorption and scattering), mechanical and thermal-optical properties of layers are in agreement with the real properties of epidermis and dermis of skin.
Liudmila Astafyeva +2 more
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