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DS: Fachverband Dünne Schichten
DS 36: Poster Session I
DS 36.98: Poster
Thursday, March 19, 2015, 09:30–12:00, Poster A
Dielectric Laser Acceleration of electrons using anodic alumina nanostructures — •Alexander Tafel1, Joshua McNeur1, Ang Li1, Kenneth Leedle2, Jonas Hammer1, Norbert Schönenberger1, Peyman Yousefi1, James Harris2, and Peter Hommelhoff1 — 1Department of Laserphysics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany — 2Stanford University, USA
Dielectric Laser acceleration (DLA) has evolved quickly during the last few years. Successful experiments have been conducted with electron energies as low as 28 keV, accelerating gradients as high as 375 MeV/m and deflection angles of 8 mrad. Here, we discuss thin anodic alumina honeycomb nanostructures that are being investigated for future experiments. These nanostructures are periodic in two dimensions, resulting in field patterns and particle trajectories potentially leading to transverse microbunching. Moreover, the damage threshold of alumina in the NIR is high, enabling high accelerating gradients and strong deflecting fields. Lastly, thin films for high reflectivity and thus stronger fields are discussed.
[1] J. Breuer, P. Hommelhoff, Phys. Rev. Let., 111, 134803 (2013).
[2] K. Leedle et al., to be published.