Generation of attosecond electron pulses using petawatt lasers

Katarzyna Krajewska; Felipe Cajiao Vélez; Jerzy Z. Kamiński

doi:10.1117/12.2271138

17 May 2017 Generation of attosecond electron pulses using petawatt lasers

Katarzyna Krajewska, Felipe Cajiao Vélez, Jerzy Z. Kamiński

Proceedings Volume 10241, Research Using Extreme Light: Entering New Frontiers with Petawatt-Class Lasers III; 102411J (2017) https://doi.org/10.1117/12.2271138
Event: SPIE Optics + Optoelectronics, 2017, Prague, Czech Republic

Abstract

Ionization of positive ions by relativistically-intense short laser pulses is analyzed in the framework of relativistic strong-field theory. We observe the appearance of broad interference-free patterns in the high-energy portion of the photoelectron spectra, which extend over hundreds of driving photon energies. These structures can be controlled by changing parameters of the driving laser field. As we also demonstrate, the electrons comprising these broad structures can form pulses of attosecond duration. While we present the fully numerical results for laser field intensities below 10²⁰W=cm², we also introduce the saddle point approximation to treat photoionization at larger intensities. In addition, the conditions enabling generation of ultrashort electron pulses are studied.

Citation Download Citation

Katarzyna Krajewska, Felipe Cajiao Vélez, and Jerzy Z. Kamiński "Generation of attosecond electron pulses using petawatt lasers", Proc. SPIE 10241, Research Using Extreme Light: Entering New Frontiers with Petawatt-Class Lasers III, 102411J (17 May 2017); https://doi.org/10.1117/12.2271138

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