Synchrotron radiation from an accelerating light pulse

Synchrotron radiation-namely, electromagnetic radiation produced by charges moving in a curved path-is regularly generated at large-scale facilities where giga-electron volt electrons move along kilometer-long circular paths. We use a metasurface to bend light and demonstrate synchrotron radiation p...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 2018-10, Vol.362 (6413), p.439-442
Main Authors: Henstridge, M, Pfeiffer, C, Wang, D, Boltasseva, A, Shalaev, V M, Grbic, A, Merlin, R
Format: Article
Language:English
Subjects:
Circularity
Electromagnetic radiation
Femtosecond pulses
International organizations
Light
Light sources
Magnetic fields
Micrometers
Polarization
Radiation
Synchrotron radiation
Terahertz frequencies
Tomography
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Summary:Synchrotron radiation-namely, electromagnetic radiation produced by charges moving in a curved path-is regularly generated at large-scale facilities where giga-electron volt electrons move along kilometer-long circular paths. We use a metasurface to bend light and demonstrate synchrotron radiation produced by a subpicosecond pulse, which moves along a circular arc of radius 100 micrometers inside a nonlinear crystal. The emitted radiation, in the terahertz frequency range, results from the nonlinear polarization induced by the pulse. The generation of synchrotron radiation from a pulse revolving about a circular trajectory holds promise for the development of on-chip terahertz sources.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.aat5915