Nonlinear increase in the energy input into a medium at the fusion of regularized femtosecond filaments
Nonlinear increase in the energy input into a medium at the fusion of regularized femtosecond filaments
复制标题
规则化飞秒细丝融合时输入介质的能量非线性增加
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
A. Savel’ev
中科院分区：
文献类型：
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作者：
D. Pushkarev;E. Mitina;D. Uryupina;R. Volkov;N. Panov;A. Karabutov;O. Kosareva;A. Savel’ev
对峰值功率高于临界自聚焦功率数倍的四束飞秒激光在空气中的聚变进行了实验研究。已经表明，在这种状态下形成的超丝确保了向介质的有效能量输入。已经表明，输入能量的线密度随着激光脉冲的能量和熔融光束的数量近似呈二次方增加。
The fusion in air of four femtosecond laser beams each with the peak power several times higher than the critical self-focusing power has been studied experimentally. It has been shown that a superfilament formed in such a regime ensures the efficient energy input to a medium. It has been shown that the linear density of the input energy increases approximately quadratically with both the energy of a laser pulse and the number of fused beams.