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

I R Khairulin; V A Antonov; M Yu Ryabikin; M A Berrill; V N Shlyaptsev; J J Rocca; Olga Kocharovskaya

doi:10.1038/s41598-022-09701-z

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

Sci Rep. 2022 Apr 13;12(1):6204. doi: 10.1038/s41598-022-09701-z.

Authors

I R Khairulin¹, V A Antonov², M Yu Ryabikin^{1

3}, M A Berrill⁴, V N Shlyaptsev⁴, J J Rocca^{4

5}, Olga Kocharovskaya⁶

Affiliations

¹ Institute of Applied Physics of the Russian Academy of Sciences, 46 Ulyanov Street, Nizhny Novgorod, Russia, 603950.
² Institute of Applied Physics of the Russian Academy of Sciences, 46 Ulyanov Street, Nizhny Novgorod, Russia, 603950. antonov@appl.sci-nnov.ru.
³ Lobachevsky State University of Nizhny Novgorod, 23 Prospekt Gagarina, Nizhny Novgorod, Russia, 603950.
⁴ Department of Electrical and Computer Engineering, Colorado State University, Fort Collins, CO, 80523, USA.
⁵ Department of Physics, Colorado State University, Fort Collins, CO, 80523, USA.
⁶ Department of Physics and Astronomy and Institute for Quantum Science and Engineering, Texas A&M University, 578 University Drive, College Station, TX, 77843-4242, USA.

Abstract

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.

Abstract

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