Double-pulsed wave packets in spontaneous radiation from a tandem undulator

T. Kaneyasu; M. Hosaka; A. Mano; Y. Takashima; M. Fujimoto; E. Salehi; H. Iwayama; Y. Hikosaka; M. Katoh

doi:10.1038/s41598-022-13684-2

Double-pulsed wave packets in spontaneous radiation from a tandem undulator

T. Kaneyasu^*, M. Hosaka, A. Mano, Y. Takashima, M. Fujimoto, E. Salehi, H. Iwayama, Y. Hikosaka, M. Katoh

^*Corresponding author for this work

Faculty of Liberal Arts and Sciences

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

We verify that each wave packet of spontaneous radiation from two undulators placed in series has a double-pulsed temporal profile with pulse spacing which can be controlled at the attosecond level. Using a Mach–Zehnder interferometer operating at ultraviolet wavelengths, we obtain the autocorrelation trace for the spontaneous radiation from the tandem undulator. The results clearly show that the wave packet has a double-pulsed structure, consisting of a pair of 10-cycle oscillations with a variable separation. We also report the characterization of the time delay between the double-pulsed components in different wavelength regimes. The excellent agreement between the independent measurements confirms that a tandem undulator can be used to produce double-pulsed wave packets at arbitrary wavelength.

Original language	English
Article number	9682
Journal	Scientific Reports
Volume	12
Issue number	1
DOIs	https://doi.org/10.1038/s41598-022-13684-2
State	Published - 2022/12

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title = "Double-pulsed wave packets in spontaneous radiation from a tandem undulator",

abstract = "We verify that each wave packet of spontaneous radiation from two undulators placed in series has a double-pulsed temporal profile with pulse spacing which can be controlled at the attosecond level. Using a Mach–Zehnder interferometer operating at ultraviolet wavelengths, we obtain the autocorrelation trace for the spontaneous radiation from the tandem undulator. The results clearly show that the wave packet has a double-pulsed structure, consisting of a pair of 10-cycle oscillations with a variable separation. We also report the characterization of the time delay between the double-pulsed components in different wavelength regimes. The excellent agreement between the independent measurements confirms that a tandem undulator can be used to produce double-pulsed wave packets at arbitrary wavelength.",

author = "T. Kaneyasu and M. Hosaka and A. Mano and Y. Takashima and M. Fujimoto and E. Salehi and H. Iwayama and Y. Hikosaka and M. Katoh",

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doi = "10.1038/s41598-022-13684-2",

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T1 - Double-pulsed wave packets in spontaneous radiation from a tandem undulator

AU - Kaneyasu, T.

AU - Hosaka, M.

AU - Mano, A.

AU - Takashima, Y.

AU - Fujimoto, M.

AU - Salehi, E.

AU - Iwayama, H.

AU - Hikosaka, Y.

AU - Katoh, M.

PY - 2022/12

Y1 - 2022/12

N2 - We verify that each wave packet of spontaneous radiation from two undulators placed in series has a double-pulsed temporal profile with pulse spacing which can be controlled at the attosecond level. Using a Mach–Zehnder interferometer operating at ultraviolet wavelengths, we obtain the autocorrelation trace for the spontaneous radiation from the tandem undulator. The results clearly show that the wave packet has a double-pulsed structure, consisting of a pair of 10-cycle oscillations with a variable separation. We also report the characterization of the time delay between the double-pulsed components in different wavelength regimes. The excellent agreement between the independent measurements confirms that a tandem undulator can be used to produce double-pulsed wave packets at arbitrary wavelength.

AB - We verify that each wave packet of spontaneous radiation from two undulators placed in series has a double-pulsed temporal profile with pulse spacing which can be controlled at the attosecond level. Using a Mach–Zehnder interferometer operating at ultraviolet wavelengths, we obtain the autocorrelation trace for the spontaneous radiation from the tandem undulator. The results clearly show that the wave packet has a double-pulsed structure, consisting of a pair of 10-cycle oscillations with a variable separation. We also report the characterization of the time delay between the double-pulsed components in different wavelength regimes. The excellent agreement between the independent measurements confirms that a tandem undulator can be used to produce double-pulsed wave packets at arbitrary wavelength.

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Double-pulsed wave packets in spontaneous radiation from a tandem undulator

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