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arXiv · 1602.03685

Temporal structure of attosecond pulses from laser-driven coherent synchrotron emission

S. Cousens·B. Reville·B. Dromey·M. Zepf
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Abstract

The microscopic dynamics of laser-driven coherent synchrotron emission transmitted through thin foils are investigated using particle-in-cell simulations. For normal incidence interactions, we identify the formation of two distinct electron nanobunches from which emission takes place each half-cycle of the driving laser pulse. These emissions are separated temporally by 130 attoseconds and are dominant in different frequency ranges, which is a direct consequence of the distinct characteristics of each electron nanobunch. This may be exploited through spectral filtering to isolate these emissions, generating electromagnetic pulses of duration ~70 as.

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S. Cousens, B. Reville, B. Dromey, M. Zepf. 2016-02-11. Temporal structure of attosecond pulses from laser-driven coherent synchrotron emission. https://doi.org/10.1103/physrevlett.116.083901

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