laser pulse interaction
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2021 ◽  
Vol 24 (3) ◽  
pp. 242-259
Author(s):  
V. A. Trofimov ◽  
M. M. Loginova ◽  
V.A. Egorenkov

We consider a problem of laser pulse interaction with a nonlinear medium which is accompanied by different nonlinear phenomena. Among them, we highlight the laser pulse self-action, optical bistability realization, formation of laser-induced complicated spatio-temporal structures. For computer modeling of these strongly nonlinear effects, using robust conservative numerical methods is required. Well-known, there are two widely applied approaches for the construction of numerical method: the conservative finite-difference schemes and additive finite-difference schemes (the split-step methods or decomposition methods). The first ones are non-economic, as a rule, while the second type of the methods is economic ones, however they possess well-known disadvantages. In our study, we joint advantages of both approaches by developing an original multi-stage iterative process for the conservative finite-difference scheme realization. Using computer simulation results, we demonstrate the feasibility of the proposed approach for investigating certain nonlinear optical phenomena.



2021 ◽  
Vol 9 (4) ◽  
pp. 325-336
Author(s):  
Sergei Davydov ◽  
Alexander Dolgov ◽  
Alekcey Katorov ◽  
Vladislav Revazov ◽  
Rustam Yakubov

The hypothesis of discharge initiation in vacuum gap by optical range radiation based on previously obtained experimental data. During the laser pulse interaction with electrode erosion products the glow discharge has ignited. In result of ioniza-tion-overheating instability the discharge has had current channel contraction and has transferred to arc. The dependences of material of target thermo dynamical parameters on the minimal and threshold laser pulse energy have demonstrated. The threshold laser pulse energy – the energy which enough to effective impact on the laser plasma.





2021 ◽  
pp. 30-36

The hypothesis of discharge initiation in vacuum gap by optical range radiation based on pre-viously obtained experimental data. During the laser pulse interaction withelectrode erosionproductsthe glow discharge has ignited. In result of ionization-overheating instability the dis-charge has had current channel contraction and has transferred to arc. Thedependences ofmaterial of target thermo dynamical parameters on theminimal and thresholdlaser pulse en-ergyhave demonstrated. The threshold laser pulse energy –the energy which enough to effec-tive impact on the laser plasma.





2020 ◽  
Vol 48 (10) ◽  
pp. 3727-3734
Author(s):  
Mukesh Chand Gurjar ◽  
Krishna Gopal ◽  
Devki Nandan Gupta ◽  
Victor V. Kulagin ◽  
Hyyong Suk


2020 ◽  
Vol 22 (10) ◽  
pp. 105201
Author(s):  
Mamat Ali BAKE ◽  
Aynisa TURSUN ◽  
Aimierding AIMIDULA ◽  
Baisong XIE


2020 ◽  
Vol 513 ◽  
pp. 145702 ◽  
Author(s):  
Saurabh Awasthi ◽  
Douglas J. Little ◽  
A. Fuerbach ◽  
D.M. Kane


2019 ◽  
Vol 59 (10) ◽  
pp. e201900048 ◽  
Author(s):  
Gang Li ◽  
Bin Zhu ◽  
Yuchi Wu ◽  
Feng Lu ◽  
Fang Tan ◽  
...  


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