Abstract
Giant half-cycle attosecond pulse generation in the coherent bremsstrahlung emission (CBE) regime is proposed for laser pulses with normal incidence on a double-foil target, where the first foil is transparent and the second foil is opaque. The presence of the second opaque target contributes to the formation of a relativistic flying electron sheet (RFES) from the first-foil target. After the RFES has passed through the second opaque target, it is decelerated sharply and bremsstrahlung emission occurs, which results in the generation of an isolated half-cycle attosecond pulse having an intensity of 1.4x10^22W=cm^2 and a duration of 3:6as. The generation mechanism does not require extra filters and may open a new regime of nonlinear attosecond science.
Original language | English |
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Article number | 035201 |
Number of pages | 8 |
Journal | Physical Review E: Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics |
Volume | 107 |
Issue number | 3-2 |
DOIs | |
Publication status | Published - 6 Mar 2023 |
Keywords
- laser-plasma interaction
- attosecond pulses (AP)
- coherent bremsstrahlung emission (CBE) regime
- half-cycle AP