Results 271 to 280 of about 134,640 (311)

Heating of Basalts with a Carbon Dioxide Laser

Science, 1970
Basalts heated strongly with focused infrared laser radiation vaporized and splattered. Electron microprobe analyses of condensate, ejecta, and residue show strong vapor fractionation trends which, for some elements, are different from what would be expected theoretically and from previously reported data on more siliceous materials.
M, Blander, K, Keil, L S, Nelson, S R, Skaggs   +3 more
openaire   +2 more sources

Heat Generation in Laser Irradiated Tissue

Journal of Biomechanical Engineering, 1989
Many medical applications involving lasers rely upon the generation of heat within the tissue for the desired therapeutic effect. Determination of the absorbed light energy in tissue is difficult in many cases. Although UV wavelengths of the excimer laser and 10.6 μm wavelength of the CO2 laser are absorbed within the first 20 μm of soft tissue ...
A J, Welch, J A, Pearce, K R, Diller, G, Yoon, W F, Cheong   +4 more
openaire   +2 more sources

Modeling facet heating in ridge lasers

Microelectronics Reliability, 2003
Abstract A numerical self-consistent model to study facet heating in semiconductor lasers is presented. The model consists of the solutions of the 3D heat equation and the 1D longitudinal carrier and photon rate equations. The model is used to investigate facet heating in a ridge laser structure and the results are compared with the predictions of ...
G. Romo, Tom J. Smy, David J. Walkey, B. Reid   +3 more
openaire   +1 more source

Simulation of Surface Heating Process with Laser

2017
The model of heating of surface of solid substance with infra-red laser and cooling with air flow is created. From initial differential partial equations the discrete form of equation is obtained. The method of integration of system under dynamic change of energy of laser beam and constant parameters of airflow is worked out.
Tatiana A. Akimenko, Olga Y. Gorbunova, Valery A. Dunaev   +2 more
openaire   +1 more source

Soot diagnostics based on laser heating

Applied Optics, 1984
Through numerical calculations we have investigated the possibility of developing soot diagnostics based on laser heating of the soot particles. Two strategies, one using the laser-modulated incandescence of the particles, and the other using direct detection of the evaporated C2 molecules, were examined. Both strategies can yield size distribution and
openaire   +2 more sources

Local Laser- Induced Heat Treatment

1998
The laser is a useful tool for the heat treatment in microtechnology mainly for two reasons: Firstly, the beam can be focussed onto a small area thus allowing local heating of very tiny parts. Secondly, heating rates of up to 108 K/s can be achieved for periods from a few nanoseconds to hundreds of milliseconds.
Simeon M. Metev, Vadim P. Veiko
openaire   +1 more source

Heat and Mass Transfer in Pulsed Laser Heating

1986
Under a laser-induced ultrarapid heat flow transient, a number of different regimes and phenomena may occur, according to the values of the incident energy density and the pulse time duration.
openaire   +1 more source

Light, Lasers and Laser Heating (Tutorial)

2022
openaire   +1 more source

Measurements of Non-Maxwellian Electron Distribution Functions and Their Effect on Laser Heating

Physical Review Letters, 2021
A L Milder, J Katz, J P Palastro
exaly  

Laser-heated cathode

Vacuum, 1965
openaire   +2 more sources