English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We present a regime where an ultra-intense laser pulse interacting with afoil target results in high $\gamma$-photon conversion efficiency, obtained viathree-dimensional quantum-electrodynamics particle-in-cell simulations. Asingle-cycle laser pulse is used under the tight-focusing condition forobtaining the $\mathrm{\lambda}^3$ regime. The simulations employ a radiallypolarized laser as it results in higher $\gamma$-photon conversion efficiencycompared to both azimuthal and linear polarizations. A significant fraction ofthe laser energy is transferred to positrons, while a part of theelectromagnetic wave escapes the target as attosecond single-cycle pulses.

Gamma-Ray Flash Generation in Irradiating Thin Foil Target by Single Cycle Tightly Focused Extreme Power Laser Pulse