Ultrashort free electron pulses scattering on matter and light

J.F.M. van Rens, W. Verhoeven, E. Kieft, P.H.A. Mutsaers, O.J. Luiten

Research output: Contribution to conferencePosterAcademic

Abstract

We are developing microwave cavities to chop a low-emittance electron beam into 100 fs bunches at a repetition rate of 3 GHz. Accurately synchronized to a modelocked laser, these bunches can be used for ultrafast time-resolved TEM [1].
We show recently measured time-of-flight femtosecond electron energy loss spectra (ToF-FEELS) of graphite measured in a horizontal SEM-based setup using a second ‘streak’ cavity. With this cavity we have directly measured an electron pulse length of 2.7 ps and an EELS energy resolution of 12 eV.
Currently we use this setup to study the ponderomotive scattering of electron
bunches off a standing wave of high intensity laser light. At the moment of writing we have already achieved the spatial and temporal overlap of two 30-fs laser pulses. If successful, we plan to study diffraction of electrons on a standing wave of light, the so-called Kapitza-Dirac effect.
Original languageEnglish
Pages50-50
Number of pages1
Publication statusPublished - 11 Oct 2016
Event40th Annual Meeting of the section Atomic Molecular and Optical Physics - Conference Center De Werelt , Lunteren, Netherlands
Duration: 11 Oct 201612 Oct 2016
Conference number: 40

Conference

Conference40th Annual Meeting of the section Atomic Molecular and Optical Physics
CountryNetherlands
CityLunteren
Period11/10/1612/10/16

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