High efficiency guiding of terawatt subpicosecond laser pulses in a capillary discharge plasma channel.
High efficiency guiding of terawatt subpicosecond laser pulses in a capillary discharge plasma channel.
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在毛细管放电等离子体通道中高效引导太瓦亚皮秒激光脉冲。
DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
Phillip Sprangle
中科院分区：
文献类型：
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作者：
D. Kaganovich;Antonio Ting;Christopher I. Moore;A. Zigler;H. Burris;Y. Ehrlich;R. Hubbard;Phillip Sprangle
在海军研究实验室的 2 厘米长毛细管放电等离子体通道中光学引导亚皮秒、太瓦激光脉冲时，传输效率超过 75%。使用远场成像和汤姆逊散射技术测量通道出口处的引导激光束尺寸。引导激光强度>1 x 10(17) W/cm(2)，引导光束直径为35微米，传播长度为22瑞利范围。有证据表明等离子体通道延伸超出毛细管末端并影响发射激光脉冲的远场光束结构。
Transmission efficiencies in excess of 75% were obtained in the optical guiding of subpicosecond, terawatt laser pulses in a 2-cm-long capillary discharge plasma channel at the Naval Research Laboratory. The guided laser beam size at the exit of the channel was measured using far field imaging and Thomson scattering techniques. The guided laser intensity was >1 x 10(17) W/cm(2) at a guided beam diameter of 35 microm for a propagation length of 22 Rayleigh ranges. There is evidence that the plasma channel extends beyond the ends of the capillary and affects the far field beam structure of the transmitted laser pulse.