Double-pulsed wave packets in spontaneous radiation from a tandem undulator.
Sci Rep
; 12(1): 9682, 2022 Jun 11.
Article
en En
| MEDLINE
| ID: mdl-35690656
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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MEDLINE
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Sci Rep
Año:
2022
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Article
País de afiliación:
Japón