Quasi-phase-matched high-harmonic generation in gas-filled hollow-core photonic crystal fiber
Optica The Optical Society 6:4 (2019) 442-442
Plasma Wakefield Accelerator Research 2019 - 2040: A community-driven UK roadmap compiled by the Plasma Wakefield Accelerator Steering Committee (PWASC)
(2019)
Low-density hydrodynamic optical-field-ionized plasma channels generated with an axicon lens
Physical Review Accelerators and Beams American Physical Society 22:4 (2019) 041302
Abstract:
We demonstrate optical guiding of high-intensity laser pulses in long, low density hydrodynamic optical-field-ionized (HOFI) plasma channels. An axicon lens is used to generate HOFI plasma channels with on-axis electron densities as low as $n_e(0) = 1.5\times 10^{17}\, \mathrm{cm}^{-3}$ and matched spot sizes in the range $ 20 \mu \mathrm{m} \lesssim W_M \lesssim 40 \mu \mathrm{m}$. Control of these channel parameters via adjustment of the initial cell pressure and the delay after the arrival of the channel-forming pulse is demonstrated. For laser pulses with a peak axial intensity of $4 \times 10^{17}\, \mathrm{W\,cm}^{-2}$, highly reproducible, high-quality guiding over more than 14 Rayleigh ranges is achieved at a pulse repetition rate of 5 Hz, limited by the available channel-forming laser and vacuum pumping system. Plasma channels of this type would seem to be well suited to multi-GeV laser wakefield accelerators operating in the quasi-linear regime.Low-density hydrodynamic optical-field-ionized plasma channels generated with an axicon lens
PHYSICAL REVIEW ACCELERATORS AND BEAMS 22:4 (2019) ARTN 041302
Erratum: Emittance Preservation in an Aberration-Free Active Plasma Lens [Phys. Rev. Lett. 121, 194801 (2018)].
Physical review letters 122:12 (2019) 129901-129901