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Q: Fachverband Quantenoptik und Photonik

Q 58: Poster: Quantum Optics and Photonics IV

Q 58.57: Poster

Donnerstag, 3. März 2016, 16:30–19:00, Empore Lichthof

Attosecond gating and streaking of free electrons via interaction with laser-induced optical fields — •Norbert Schönenberger, Martin Kozak, Joshua McNeur, and Peter Hommelhoff — Department Physik, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Staudtstr. 1, 91058 Erlangen

The recent successful demonstrations of dielectric laser acceleration have opened up the possibility of more advanced experiments and setups [1,2]. The experimental results presented here demonstrate optical gating and streaking of 28 keV free electrons with a precision of 1.3 fs [3]. This is achieved via the linear interaction of the light's electric field with the energy and transverse momentum of an electron beam near a dielectric grating. Furthermore, we discuss the potential applications of the demonstrated gating and streaking. The optical gating demonstrated here can be used for a wide range of ultrafast electron diffraction experiments that require sub-fs free electron probes. Moreover, a dielectric-laser based streak camera based off of this scheme could allow for temporal characterization of electron bunches with 10 attosecond precision. [1] J. Breuer, and P. Hommelhoff, Phys. Rev. Lett. 111, 134803 (2013). [2] E. A. Peralta, et al. Nature 503, 91-94 (2013). [3] M. Kozak, J. McNeur et al., submitted.