Toward TW hard x-ray free-electron lasers

H. Freund; P.J.M. van der Slot

Toward TW hard x-ray free-electron lasers

Laser Physics & Nonlinear Optics

Research output: Contribution to conference › Poster

Abstract

The number of x-ray free-electron lasers is increasing around the world to service a fast-growing user community. The unique properties, i.e., wavelengths well into the hard x-ray region, a few femtosecond optical pulse duration and high peak brilliance, enable novel experimental studies. However, for some of these experimental techniques to reached their full potential a higher number of photons per pulse, by two to three orders of magnitude beyond the state-of-the-art, is required, i.e., x-ray pulses with beyond TW peak power. We found that a possible route towards TW powers is extreme transverse compression of the electron beam in a strong FODO lattice in conjunction with a tapered undulator. We show that when the current density reaches extremely high levels, the characteristic growth length in the tapered undulator becomes shorter than the Rayleigh range and gives rise to optical guiding over the whole undulator length, leading to hard x-ray pulses with beyond TW peak power.

Original language	English
Publication status	Published - 25 Sep 2018
Event	42st Annual Meeting NNV AMO 2018 - Conference center ‘De Werelt’ in Lunteren, Lunteren, Netherlands Duration: 25 Sep 2018 → 26 Sep 2018 Conference number: 42 https://www.ru.nl/amolunteren/

Conference

Conference	42st Annual Meeting NNV AMO 2018
Country	Netherlands
City	Lunteren
Period	25/09/18 → 26/09/18
Internet address	https://www.ru.nl/amolunteren/

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Cite this

Freund, H., & van der Slot, P. J. M. (2018). Toward TW hard x-ray free-electron lasers. Poster session presented at 42st Annual Meeting NNV AMO 2018, Lunteren, Netherlands.

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title = "Toward TW hard x-ray free-electron lasers",

abstract = "The number of x-ray free-electron lasers is increasing around the world to service a fast-growing user community. The unique properties, i.e., wavelengths well into the hard x-ray region, a few femtosecond optical pulse duration and high peak brilliance, enable novel experimental studies. However, for some of these experimental techniques to reached their full potential a higher number of photons per pulse, by two to three orders of magnitude beyond the state-of-the-art, is required, i.e., x-ray pulses with beyond TW peak power. We found that a possible route towards TW powers is extreme transverse compression of the electron beam in a strong FODO lattice in conjunction with a tapered undulator. We show that when the current density reaches extremely high levels, the characteristic growth length in the tapered undulator becomes shorter than the Rayleigh range and gives rise to optical guiding over the whole undulator length, leading to hard x-ray pulses with beyond TW peak power.",

author = "H. Freund and {van der Slot}, P.J.M.",

year = "2018",

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language = "English",

note = "42st Annual Meeting NNV AMO 2018 ; Conference date: 25-09-2018 Through 26-09-2018",

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T1 - Toward TW hard x-ray free-electron lasers

AU - Freund, H.

AU - van der Slot, P.J.M.

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N2 - The number of x-ray free-electron lasers is increasing around the world to service a fast-growing user community. The unique properties, i.e., wavelengths well into the hard x-ray region, a few femtosecond optical pulse duration and high peak brilliance, enable novel experimental studies. However, for some of these experimental techniques to reached their full potential a higher number of photons per pulse, by two to three orders of magnitude beyond the state-of-the-art, is required, i.e., x-ray pulses with beyond TW peak power. We found that a possible route towards TW powers is extreme transverse compression of the electron beam in a strong FODO lattice in conjunction with a tapered undulator. We show that when the current density reaches extremely high levels, the characteristic growth length in the tapered undulator becomes shorter than the Rayleigh range and gives rise to optical guiding over the whole undulator length, leading to hard x-ray pulses with beyond TW peak power.

AB - The number of x-ray free-electron lasers is increasing around the world to service a fast-growing user community. The unique properties, i.e., wavelengths well into the hard x-ray region, a few femtosecond optical pulse duration and high peak brilliance, enable novel experimental studies. However, for some of these experimental techniques to reached their full potential a higher number of photons per pulse, by two to three orders of magnitude beyond the state-of-the-art, is required, i.e., x-ray pulses with beyond TW peak power. We found that a possible route towards TW powers is extreme transverse compression of the electron beam in a strong FODO lattice in conjunction with a tapered undulator. We show that when the current density reaches extremely high levels, the characteristic growth length in the tapered undulator becomes shorter than the Rayleigh range and gives rise to optical guiding over the whole undulator length, leading to hard x-ray pulses with beyond TW peak power.

M3 - Poster

ER -