Rostock 2019 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 24: Poster: Quantum Optics and Photonics I

Q 24.25: Poster

Dienstag, 12. März 2019, 16:30–18:30, S Fobau Physik

Optical pulse shaping for dielectric laser acceleration — •Anna Mittelbach, Norbert Schönenberger, Johannes Illmer, Ang Li, Alexander Tafel, Peyman Yousefi, Roy Shiloh, and Peter Hommelhoff — Department Physik, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91058 Erlangen

Dielectric laser accelerators (DLAs) - novel accelerators based on the interaction of laser pulses with electrons at dielectric nanostructures [1 - 3] - were able to show the highest acceleration gradients among damage limited accelerators, currently in the range of 1 GeV/m [4]. Compared to conventional radiofrequency accelerators, DLAs enable a high electron energy gain within a small interaction region using the high peak fields of ultrashort laser pulses. In the past, not only acceleration but also transverse and longitudinal electron control as well as energy modulation have been proposed by changing the design of the used nanostructures [5]. Here we present envelope shaped and frequency modulated laser pulses as a different approach for tuning laser-electron-interaction in DLA structures.

[1] E. A. Peralta, Nature 2013, 503, 91-94.

[2] J. Breuer, P. Hommelhoff, Phys. Rev. Lett. 2013, 111, 134803.

[3] R. J. England et al., Rev. Mod. Phys. 2014, 86, 1337-1389.

[4] D. Cesar et al., Nat. Commun. 2018, 1, 46.

[5] U. Niedermayer et al., Phys. Rev. Lett. 2018, 121, 214801.