000 02427nab a2200337 c 4500
001 vtls000789471
003 RU-ToGU
005 20210922105925.0
007 cr |
008 201202|2018 xxu s a eng d
024 7 _a10.1063/1.5012758
_2doi
035 _ato000789471
040 _aRU-ToGU
_brus
_cRU-ToGU
100 1 _aPovarnitsyn, Mikhail E.
_9485685
245 1 0 _aSimulation of ultrafast bursts of subpicosecond pulses: In pursuit of efficiency
_cM. E. Povarnitsyn, P. R. Levashov, D. V. Knyazev
336 _aТекст
337 _aэлектронный
504 _aБиблиогр.: 31 назв.
520 3 _aUsing a hydrodynamic two-temperature model, we simulate multi-pulse laser ablation of an aluminum bulk target. The results of modeling demonstrate that the effectiveness of the multi-pulse ablation increases an order of magnitude in comparison to a single-pulse ablation of the same energy, while the repetition rate grows up to several GHz because the material surface does not cool down substantially between successive pulses. To prevent the shielding and suppression effects, the fluence of each pulse in the burst should have a subthreshold value to avoid the generation of slow moving ablated condensed-phase nanolayers. The obtained results are consistent with recent experiments on ablation by ultrafast bursts of ultrashort pulses. This work was supported by the Russian Science Foundation, Grant No. 16-19-10700. The authors acknowledge the JIHT RAS Supercomputer Centre, the Joint Supercomputer Center of the Russian Academy of Sciences, and the Shared Resource Center “Far Eastern Computing Resource” IACP FEB RAS for providing computing time.
653 _aсубпикосекундные импульсы
653 _aимпульсная лазерная абляция
653 _aдвухтемпературные гидродинамические модели
655 4 _aстатьи в журналах
_9745982
700 1 _aLevashov, Pavel R.
_9485686
700 1 _aKnyazev, Dmitry V.
_9497343
773 0 _tApplied physics letters
_d2018
_gVol. 112, № 5. P. 051603-1-051603-5
_x0003-6951
852 4 _aRU-ToGU
856 4 _uhttp://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000789471
908 _aстатья
999 _c473314