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Title: X-ray pulse generation with ultra-fast flipping of its orbital angular momentum

Journal Article · · Optics Express
DOI: https://doi.org/10.1364/OE.470503 · OSTI ID:1880722

A method to temporally tailor the properties of X-ray radiation carrying Orbital Angular Momentum (OAM) is presented. In simulations, an electron beam is prepared with a temporally modulated micro-bunching structure which, when radiating at the second harmonic in a helical undulator, generates OAM light with a corresponding temporally modulated intensity. This method is shown to generate attosecond pulse trains of OAM light without the need for any additional external optics, making the wavelength range tunable. In addition to the OAM pulse train, the method can be adapted to generate radiation where the handedness of the OAM mode may also be temporally modulated (flipped).

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
Engineering and Physical Sciences Research Council; John von Neumann Institute for Computing (NIC); USDOE
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1880722
Journal Information:
Optics Express, Journal Name: Optics Express Journal Issue: 17 Vol. 30; ISSN 1094-4087; ISSN OPEXFF
Publisher:
Optical Society of AmericaCopyright Statement
Country of Publication:
United States
Language:
English

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