623 citations · 3.6k across the 72 of their papers we have counts for
6 papers · 1 filter
Multi-mJ, kHz, 2.1-m OPCPA for high-flux soft X-ray high-harmonic radiation
Kyung-Han Hong, Chien-Jen Lai, Jonathas Siqueira +5
We report on a multi-mJ 2.1-m OPCPA system operating at a 1-kHz repetition rate, pumped by a picosecond cryogenic Yb:YAG pump laser, and the phase-matched high-flux high-harmoni…
A Threshold for Laser-Driven Linear Particle Acceleration in Unbounded Vacuum
Liang Jie Wong, Franz X. Kärtner
We hypothesize that a charged particle in unbounded vacuum can be substantially accelerated by a force linear in the electric field of a propagating electromagnetic wave only if th…
Direct acceleration of an electron in infinite vacuum by a pulsed radially-polarized laser beam
Liang Jie Wong, Franz X. Kärtner
We study the direct acceleration of a free electron in infinite vacuum along the axis of a pulsed radially-polarized laser beam. We find that net energy transfer from laser pulse t…
Two-Color-Laser-Driven Direct Electron Acceleration in Infinite Vacuum
Liang Jie Wong, Franz X. Kärtner
We propose a direct electron acceleration scheme that uses a two-color pulsed radially-polarized laser beam. The two-color scheme achieves electron acceleration exceeding 90% of th…
Compact electron acceleration and bunch compression in THz waveguides
Liang Jie Wong, Arya Fallahi, Franz X. Kärtner
We numerically investigate the acceleration and bunch compression capabilities of 20 mJ, 0.6 THz-centered coherent terahertz pulses in optimized metallic dielectric-loaded cylindri…
An improved beam waist formula for ultrashort, tightly-focused linearly, radially, and azimuthally polarized laser pulses in free space
Liang Jie Wong, Franz X. Kärtner, Steven G. Johnson
We derive an asymptotically accurate formula for the beam waist of ultrashort, tightly-focused fundamental linearly-polarized, radially-polarized, and azimuthally-polarized modes i…