Alternating-Phase Focusing for Dielectric-Laser Acceleration

Beitrag in einer Fachzeitschrift

Details zur Publikation

Autor(en): Niedermayer U, Egenolf T, Boine-Frankenheim O, Hommelhoff P
Zeitschrift: Physical Review Letters
Jahr der Veröffentlichung: 2018
Band: 121
ISSN: 1079-7114
Sprache: Englisch


The concept of dielectric-laser acceleration provides the highest gradients among breakdown-limited
(nonplasma) particle accelerators. However, stable beam transport and staging have not been shown
experimentally yet. We present a scheme that confines the beam longitudinally and in one transverse
direction. Confinement in the other direction is obtained by a single conventional quadrupole magnet.
Within the small aperture of 420 nm we find the matched distributions, which allow an optimized injection
into pure transport, bunching, and accelerating structures. The combination of these resembles the
photonics analogue of the radio frequency quadrupole, but since our setup is entirely two dimensional, it
can be manufactured on a microchip by lithographic techniques. This is a crucial step towards relativistic
electrons in the MeV range from low-cost, handheld devices and connects the two fields of attosecond
physics and accelerator physics.

FAU-Autoren / FAU-Herausgeber

Hommelhoff, Peter Prof. Dr.
Lehrstuhl für Laserphysik

Autor(en) der externen Einrichtung(en)
Technische Universität Darmstadt


Niedermayer, U., Egenolf, T., Boine-Frankenheim, O., & Hommelhoff, P. (2018). Alternating-Phase Focusing for Dielectric-Laser Acceleration. Physical Review Letters, 121.

Niedermayer, Uwe, et al. "Alternating-Phase Focusing for Dielectric-Laser Acceleration." Physical Review Letters 121 (2018).


Zuletzt aktualisiert 2019-07-01 um 09:10