Amplification of elliptically polarized sub-femtosecond pulses in neon-like X-ray laser modulated by an IR field.

Amplification of elliptically polarized sub-femtosecond pulses in neon-like X-ray laser modulated by an IR field.
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DOI:
10.1038/s41598-022-09701-z
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发表时间:
2022-04-13
期刊:
影响因子:
4.6
通讯作者:
Kocharovskaya, Olga
Kocharovskaya, Olga
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Khairulin, I. R.;Antonov, V. A.;Ryabikin, M. Yu;Berrill, M. A.;Shlyaptsev, V. N.;Rocca, J. J.;Kocharovskaya, Olga

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高次谐波产生的阿秒脉冲的放大是一个棘手的问题,因为没有一个放大器可以支持相应的兆赫带宽。产生对于形成圆/椭圆偏振阿秒脉冲所需的一组谐波共同的定义良好的偏振状态(这是自旋翻转过程的动态成像和相干控制所需的)是另一个巨大的挑战。在这项工作中,我们将展示如何在同一平台的基础上同时解决这两个问题,即基于等离子体的X射线放大器,其共振跃迁频率由红外场调制。
Amplification of attosecond pulses produced via high harmonic generation is a formidable problem since none of the amplifiers can support the corresponding PHz bandwidth. Producing the well defined polarization state common for a set of harmonics required for formation of the circularly/elliptically polarized attosecond pulses (which are on demand for dynamical imaging and coherent control of the spin flip processes) is another big challenge. In this work we show how both problems can be tackled simultaneously on the basis of the same platform, namely, the plasma-based X-ray amplifier whose resonant transition frequency is modulated by an infrared field.
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