Application of a mode-locked fiber laser for highly time resolved broadband absorption spectroscopy and laser-assisted breakdown on micro-plasmas

Application of a mode-locked fiber laser for highly time resolved broadband absorption spectroscopy and laser-assisted breakdown on micro-plasmas
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锁模光纤激光器在高度时间分辨宽带吸收光谱和微等离子体激光辅助击穿中的应用

DOI:
10.1088/0022-3727/45/24/245202
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发表时间:
2012
期刊:
Journal of Physics D: Applied Physics
影响因子:
--
通讯作者:
J. Winter
J. Winter
中科院分区:
--
文献类型:
--
作者:
B. Niermann;I.L. Budunoglu;K. Gurel;M. Böke;F.O. Ilday;J. Winter

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众所周知,吸收光谱是一种强大的工具,可以获得等离子体放电中激发和反应物质的空间和时间分辨信息。此外,放电与短的强激光脉冲的相互作用可以触发等离子体的点火和向其他瞬态的过渡。在这种情况下,激光辅助的“泵浦探测”实验涉及同时产生的超连续谱辐射产生高度时间分辨和空间定义良好的瞬态现象的信息。在本文中,我们证明了“泵浦-探测”实验的可能性,通过启动击穿皮秒时间尺度(“泵浦”)与高功率光束和测量宽带吸收与同时提供的超连续谱(“探测”)。由于两个脉冲都是由同一个锁模主振荡器产生的,因此它们具有很强的同步性。
Absorption spectroscopy is known to be a powerful tool to gain spatially and temporally resolved information on excited and reactive species in a plasma discharge. Furthermore, the interaction of the discharge with short intense laser pulses can trigger the ignition and the transition into other transient states of the plasma. In this context laser-assisted'pump-probe'experiments involving simultaneously generated supercontinuum radiation yield highly temporally resolved and spatially well-defined information on the transient phenomena. In this paper we demonstrate the possibility for'pump–probe'experiments by initiating breakdown on a picosecond time scale ('pump') with a high-power beam and measuring the broadband absorption with the simultaneously provided supercontinuum ('probe'). Since both pulses are generated from the same mode-locked master oscillator, they have a strong level of synchronization.
直流辉光放电中光电子引发雪崩后的瞬态电流和鞘层运动。
DOI: 10.1103/physreva.40.5208
发表时间: 1989
期刊: Physical review. A, General physics
影响因子: --
作者:
Debontride;Derouard;Edel;Romestain;Sadeghi;Boeuf
通讯作者: Boeuf
DOI: 10.1063/1.2822448
发表时间: 2007-12-03
影响因子: 4
作者:
Cunge, G.;Vempaire, D.;Sadeghi, N.
通讯作者: Sadeghi, N.