High gain inner-shell x-ray lasers pumped by x-ray free-electron laser system FLASH in DESY

J. Zhao; Q. L. Dong; S. J. Wang; L. Zhang; J. Zhang

doi:10.1088/1742-6596/112/4/042054

High gain inner-shell x-ray lasers pumped by x-ray free-electron laser system FLASH in DESY

J. Zhao, Q. L. Dong, S. J. Wang, L. Zhang, J. Zhang

Research output: Contribution to journal › Conference article › peer-review

Abstract

The feasibility of generating high gain inner-shell x-ray lasers photo-ionization pumped by the DESY/XFEL facility is studied. The gain characteristics are analyzed for the two representative schemes of inner-shell x-ray transitions, the self-terminated x-ray lasing (1s)^-1 → (2p)^-1 (λ 4.5nm) in carbon (Z 6) and the quasi-stationary x-ray lasing (2p)^-1 → (3s)^-1 (λ 4.1 nm) in calcium (Z 20). When the third harmonic XFEL pumping pulses of 10 fs at 284 eV and 360 eV with the pumping intensities of 6 × 10¹⁴ W/cm² and 1 × 10¹⁷ W/cm² for C and Ca are available, respectively, a net gain of 120 cm^-1 are predicted with quite short durations of 10 fs and 2fs. Our studies show that DESY/XFEL facility is sufficient to generate the high gain photo-ionization pumped K_α radiations in low Z atoms.

Original language	English
Article number	042054
Journal	Journal of Physics: Conference Series
Volume	112
Issue number	Part 4
DOIs	https://doi.org/10.1088/1742-6596/112/4/042054
Publication status	Published - 12 Jun 2008
Externally published	Yes
Event	5th International Conference on Inertial Fusion Sciences and Applications, IFSA 2007 - Kobe, Japan Duration: 9 Sept 2007 → 14 Sept 2007

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title = "High gain inner-shell x-ray lasers pumped by x-ray free-electron laser system FLASH in DESY",

abstract = "The feasibility of generating high gain inner-shell x-ray lasers photo-ionization pumped by the DESY/XFEL facility is studied. The gain characteristics are analyzed for the two representative schemes of inner-shell x-ray transitions, the self-terminated x-ray lasing (1s)-1 → (2p)-1 (λ 4.5nm) in carbon (Z 6) and the quasi-stationary x-ray lasing (2p)-1 → (3s)-1 (λ 4.1 nm) in calcium (Z 20). When the third harmonic XFEL pumping pulses of 10 fs at 284 eV and 360 eV with the pumping intensities of 6 × 1014 W/cm2 and 1 × 1017 W/cm2 for C and Ca are available, respectively, a net gain of 120 cm-1 are predicted with quite short durations of 10 fs and 2fs. Our studies show that DESY/XFEL facility is sufficient to generate the high gain photo-ionization pumped Kα radiations in low Z atoms.",

author = "J. Zhao and Dong, {Q. L.} and Wang, {S. J.} and L. Zhang and J. Zhang",

note = "Publisher Copyright: {\textcopyright} 2008 IOP Publishing Ltd.; 5th International Conference on Inertial Fusion Sciences and Applications, IFSA 2007 ; Conference date: 09-09-2007 Through 14-09-2007",

year = "2008",

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doi = "10.1088/1742-6596/112/4/042054",

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T1 - High gain inner-shell x-ray lasers pumped by x-ray free-electron laser system FLASH in DESY

AU - Zhao, J.

AU - Dong, Q. L.

AU - Wang, S. J.

AU - Zhang, L.

AU - Zhang, J.

PY - 2008/6/12

Y1 - 2008/6/12

N2 - The feasibility of generating high gain inner-shell x-ray lasers photo-ionization pumped by the DESY/XFEL facility is studied. The gain characteristics are analyzed for the two representative schemes of inner-shell x-ray transitions, the self-terminated x-ray lasing (1s)-1 → (2p)-1 (λ 4.5nm) in carbon (Z 6) and the quasi-stationary x-ray lasing (2p)-1 → (3s)-1 (λ 4.1 nm) in calcium (Z 20). When the third harmonic XFEL pumping pulses of 10 fs at 284 eV and 360 eV with the pumping intensities of 6 × 1014 W/cm2 and 1 × 1017 W/cm2 for C and Ca are available, respectively, a net gain of 120 cm-1 are predicted with quite short durations of 10 fs and 2fs. Our studies show that DESY/XFEL facility is sufficient to generate the high gain photo-ionization pumped Kα radiations in low Z atoms.

AB - The feasibility of generating high gain inner-shell x-ray lasers photo-ionization pumped by the DESY/XFEL facility is studied. The gain characteristics are analyzed for the two representative schemes of inner-shell x-ray transitions, the self-terminated x-ray lasing (1s)-1 → (2p)-1 (λ 4.5nm) in carbon (Z 6) and the quasi-stationary x-ray lasing (2p)-1 → (3s)-1 (λ 4.1 nm) in calcium (Z 20). When the third harmonic XFEL pumping pulses of 10 fs at 284 eV and 360 eV with the pumping intensities of 6 × 1014 W/cm2 and 1 × 1017 W/cm2 for C and Ca are available, respectively, a net gain of 120 cm-1 are predicted with quite short durations of 10 fs and 2fs. Our studies show that DESY/XFEL facility is sufficient to generate the high gain photo-ionization pumped Kα radiations in low Z atoms.

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U2 - 10.1088/1742-6596/112/4/042054

DO - 10.1088/1742-6596/112/4/042054

M3 - Conference article

AN - SCOPUS:84996555447

SN - 1742-6588

VL - 112

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - Part 4

M1 - 042054

T2 - 5th International Conference on Inertial Fusion Sciences and Applications, IFSA 2007

Y2 - 9 September 2007 through 14 September 2007

ER -

High gain inner-shell x-ray lasers pumped by x-ray free-electron laser system FLASH in DESY

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