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arXiv 1507.00635physics.optics
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高次谐波产生的阿秒XUV涡旋

Attosecond XUV vortices from high-order harmonic generation

C. Hernández-García, A. Picón, J. San Román, L. Plaja

摘要:

本文对轨道角动量红外光场驱动下的高次谐波产生和传播进行了理论研究。我们的计算揭示了以下相关现象:极紫外谐波涡旋的产生和生存的传播效应,涡旋传输高OAM倍的驱动场的相应OAM,最后,不同的谐波涡旋发射类似的发散。我们还展示了OAM和HHG锁相相结合产生具有螺旋脉冲结构的阿秒脉冲的可能性。

英文摘要:

We present a theoretical study of high-order harmonic generation (HHG) and propagation driven by an infrared field carrying orbital angular momentum (OAM). Our calculations unveil the following relevant phenomena: extreme-ultraviolet harmonic vortices are generated and survive to the propagation effects, vortices transport high-OAM multiple of the corresponding OAM of the driving field and, finally, the different harmonic vortices are emitted with similar divergence. We also show the possibility of combining OAM and HHG phase-locking to produce attosecond pulses with helical pulse structure.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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