Abstract
The electric field amplitude produced by a femtosecond laser provides a powerful method to swiftly accelerate electrons. To efficiently couple to free electrons, the laser-electron interaction must be phase-matched. Considering the regime of linear optics, this has been shown to be possible using the inverse Smith-Purcell effect, where a laser generates intense nearfields in a nanophotonic structure designed to match the electron’s velocity [1,2]. Where conventional radiofrequency cavities are typically damage-limited to 100 MV/m and usually operate at 25 MV/m electric fields, dielectric laser accelerator structures have been shown to withstand almost 10 GV/m fields [3] – two orders of magnitude higher. This enables the electron accelerator on a chip [4], because its length can be equally reduced by two orders of magnitude: from meter-size to centimeter-size.
© 2023 IEEE
PDF ArticleMore Like This
Roy Shiloh, Tomáš Chlouba, Stefanie Kraus, Leon Brückner, Julian Litzel, and Peter Hommelhoff
pd_1_7 The European Conference on Lasers and Electro-Optics (CLEO/Europe) 2023
T. Chlouba, R. Shiloh, S. Kraus, L. Brückner, J. Litzel, and P. Hommelhoff
FW6C.3 Frontiers in Optics (FiO) 2023
S. Kraus, R. Shiloh, J. Illmer, T. Chlouba, P. Yousefi, N. Schönenberger, U. Niedermayer, A. Mittelbach, and P. Hommelhoff
FTh5B.4 CLEO: QELS_Fundamental Science (CLEO:FS) 2022