400-Channel commutator for laser-radiation energy-distribution measurement

1984 ◽  
Vol 27 (5) ◽  
pp. 405-408
Author(s):  
V. L. Chereugin ◽  
A. A. Kuznetsov
Keyword(s):  
Laser Radiation ◽  
Energy Distribution ◽  
Radiation Energy ◽  
Laser Radiation Energy ◽  
Distribution Measurement

scholarly journals The accumulation of femtosecond laser radiation energy in crystals of lithium fluoride

2015 ◽  
Author(s):  
V. P. Dresvyanskiy ◽  
D. S. Glazunov ◽  
S. V. Alekseev ◽  
V. F. Losev ◽  
B. Chadraa ◽  
...  
Keyword(s):  
Laser Radiation ◽  
Femtosecond Laser ◽  
Lithium Fluoride ◽  
Radiation Energy ◽  
Femtosecond Laser Radiation ◽  
Laser Radiation Energy

SOLAR PUMPED LASER BASED ON COMPOSITE TITANIUMSAPPHIRE ACTIVE MEDIUM

2018 ◽  
Vol 20 (5) ◽  
pp. 321-323
Author(s):  
Sh. Payziyev ◽  
Kh. Makhmudov ◽  
S. Bakhramov ◽  
A. Kasimov
Keyword(s):  
Laser Radiation ◽  
Pump Power ◽  
Solar Radiation ◽  
Solar Energy ◽  
Computer Simulations ◽  
Active Element ◽  
Radiation Energy ◽  
Laser Radiation Energy ◽  
Optimal Geometry ◽  
Concentrated Solar Radiation

On the basis of the active element of Ti3+:Al2O3, the possibility of converting solar energy into laser radiation energy is investigated. By the computer simulations, it was shown the possibility of reducing the threshold pump power by choosing the optimal geometry of the crystal parameters for end-pumping scheme of concentrated solar radiation.

Laser hardening of metallic materials

2020 ◽  
pp. 547-553
Author(s):  
V.A. Kim ◽  
Aung Ngwe Thein ◽  
I.V. Belova
Keyword(s):  
Laser Radiation ◽  
Heat Affected Zone ◽  
Laser Energy ◽  
Radiation Energy ◽  
Melting Zone ◽  
Hardened Layer ◽  
Laser Hardening ◽  
Empirical Equations ◽  
Metallic Materials ◽  
Laser Radiation Energy

The surface microstructure of metallic materials formed under the effect of laser radiation is characterized by high degree of nonequilibrium, has layered structure consisting of the main three zones formed from the fused material, the heat-affected zone and the tempering zone. As the laser radiation energy increases, the size of the modified layer increases, and the coverage width of the melting zone and heat-affected zone is determined by the maximum penetration depth of the melting and polymorphic transformation isotherms. The distribution of microhardness over the depth depending on the laser radiation energy is exponential or extreme, and the microhardness is usually maximum in the heat-affected zone. As the laser energy increases, the microhardness of the hardened surfaces changes with extreme dependence. Laser hardening of metallic materials is the result of two competing hardening and softening processes. As result of mathematical processing of experimental results, empirical equations for the distribution of microhardness over the depth of laser-hardened surface layers of various steels and ARMCO-iron are obtained. Empirical equations consist of two terms, the first of which describes the processes of hardening, and the second — softening. The obtained equations allow optimizing the laser hardening modes and predicting the hardened layer depth.

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