Electron refluxing and K-shell line emission from Ti foils irradiated with subpicosecond laser pulses at 527 nm.
Electron refluxing and K-shell line emission from Ti foils irradiated with subpicosecond laser pulses at 527 nm.
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用 527 nm 亚皮秒激光脉冲照射钛箔的电子回流和 K 壳线发射。
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
Ciaran Lewis
中科院分区：
文献类型：
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作者：
G. Nersisyan;M. Makita;K. McKeever;T. Dzelzainis;S. White;E. Nedanovska;B. Kettle;R. Nicholl;G. Williams;D. Riley;Ciaran Lewis
我们目前的K-壳层辐射的发射数据从钛箔照射亚皮秒脉冲的二次谐波辐射（527 nm）从TARANIS激光系统在强度高达10（18）W cm（-2）。这些数据被用来证明，共振吸收型机制是负责吸收的激光和估计快速电子温度为30-60千电子伏，在广泛的协议与预期从模型的吸收陡峭的密度梯度。与树脂支持的目标所采取的数据被用来证明明确的证据，即使在适度的快速电子温度推断的电子束。
We present data on emission of K-shell radiation from Ti foils irradiated with subpicosecond pulses of second harmonic radiation (527 nm) from the TARANIS laser system at intensities of up to 10(18) W cm(-2). The data are used to demonstrate that a resonance absorption type mechanism is responsible for absorption of the laser light and to estimate fast electron temperatures of 30-60 keV that are in broad agreement with expectation from models of absorption for a steep density gradient. Data taken with resin-backed targets are used to demonstrate clear evidence of electron refluxing even at the modest fast electron temperatures inferred.