Isolated terawatt sub-attosecond high-energy x-ray pulse generated by an x-ray free-electron laser

The endless quest for dynamics in natural phenomena has resulted in the generation and application of attosecond pulses to trace electron dynamics in atomic and molecular systems. The next challenge is to generate powerful pulses on the zeptosecond time scale, which is currently inaccessible. Throug...

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Main Authors: Chi Hyun Shim, Ki Moon Nam, Yong Woon Parc, Dong Eon Kim
Format: Article
Language:English
Published: AIP Publishing LLC 2022-05-01
Series:APL Photonics
Online Access:http://dx.doi.org/10.1063/5.0067074
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author Chi Hyun Shim
Ki Moon Nam
Yong Woon Parc
Dong Eon Kim
author_facet Chi Hyun Shim
Ki Moon Nam
Yong Woon Parc
Dong Eon Kim
author_sort Chi Hyun Shim
collection DOAJ
description The endless quest for dynamics in natural phenomena has resulted in the generation and application of attosecond pulses to trace electron dynamics in atomic and molecular systems. The next challenge is to generate powerful pulses on the zeptosecond time scale, which is currently inaccessible. Through a simulation study, a new type of x-ray source that can generate an isolated terawatt sub-attosecond pulse at high-energy x rays by combining attosecond pulse technology with free-electron laser technology is proposed. The successful generation of a sub-attosecond pulse necessitates the consideration of nanometer-wide current-spikes, the sub-attosecond pulse amplification, and pulse duration and background noise control. The underlying interaction mechanism between a sub-attosecond pulse and a current-spike is closely investigated using the simulation results. The proposed method is expected to produce an isolated ∼700 zs pulse with a peak output of 2.9 TW at a photon energy of 247.5 keV.
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spelling doaj.art-a3e554f5ee494cb99f3ae84d832003d02022-12-22T03:26:42ZengAIP Publishing LLCAPL Photonics2378-09672022-05-0175056105056105-910.1063/5.0067074Isolated terawatt sub-attosecond high-energy x-ray pulse generated by an x-ray free-electron laserChi Hyun Shim0Ki Moon Nam1Yong Woon Parc2Dong Eon Kim3Pohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang 37673, South KoreaDivision of Advanced Nuclear Engineering, Pohang University of Science and Technology, Pohang 37673, South KoreaPohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang 37673, South KoreaDepartment of Physics, Center for Attosecond Science and Technology, Pohang University of Science and Technology, Pohang 37673, South KoreaThe endless quest for dynamics in natural phenomena has resulted in the generation and application of attosecond pulses to trace electron dynamics in atomic and molecular systems. The next challenge is to generate powerful pulses on the zeptosecond time scale, which is currently inaccessible. Through a simulation study, a new type of x-ray source that can generate an isolated terawatt sub-attosecond pulse at high-energy x rays by combining attosecond pulse technology with free-electron laser technology is proposed. The successful generation of a sub-attosecond pulse necessitates the consideration of nanometer-wide current-spikes, the sub-attosecond pulse amplification, and pulse duration and background noise control. The underlying interaction mechanism between a sub-attosecond pulse and a current-spike is closely investigated using the simulation results. The proposed method is expected to produce an isolated ∼700 zs pulse with a peak output of 2.9 TW at a photon energy of 247.5 keV.http://dx.doi.org/10.1063/5.0067074
spellingShingle Chi Hyun Shim
Ki Moon Nam
Yong Woon Parc
Dong Eon Kim
Isolated terawatt sub-attosecond high-energy x-ray pulse generated by an x-ray free-electron laser
APL Photonics
title Isolated terawatt sub-attosecond high-energy x-ray pulse generated by an x-ray free-electron laser
title_full Isolated terawatt sub-attosecond high-energy x-ray pulse generated by an x-ray free-electron laser
title_fullStr Isolated terawatt sub-attosecond high-energy x-ray pulse generated by an x-ray free-electron laser
title_full_unstemmed Isolated terawatt sub-attosecond high-energy x-ray pulse generated by an x-ray free-electron laser
title_short Isolated terawatt sub-attosecond high-energy x-ray pulse generated by an x-ray free-electron laser
title_sort isolated terawatt sub attosecond high energy x ray pulse generated by an x ray free electron laser
url http://dx.doi.org/10.1063/5.0067074
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AT kimoonnam isolatedterawattsubattosecondhighenergyxraypulsegeneratedbyanxrayfreeelectronlaser
AT yongwoonparc isolatedterawattsubattosecondhighenergyxraypulsegeneratedbyanxrayfreeelectronlaser
AT dongeonkim isolatedterawattsubattosecondhighenergyxraypulsegeneratedbyanxrayfreeelectronlaser