5 papers
Intense high-harmonic optical vortices generated from a micro-plasma-waveguide irradiated by a circularly polarized laser pulse
Ke Hu, Longqing Yi
A scheme for generating intense high-harmonic optical vortices is proposed. It relies on spin-orbit interaction of light when a relativistically-strong circularly polarized laser p…
Multimillijoule terahertz radiation from laser interactions with microplasma-waveguides
Ke Hu, Longqing Yi, Tünde Fülöp
When a relativistic, femtosecond laser pulse enters a waveguide, the pulse energy is coupled into waveguide optical modes. The longitudinal laser field effectively accelerates elec…
Highly-efficient terahertz radiation generated by surface electrons from laser-foil interactions
Ke Hu, Longqing Yi
A novel scheme for generating powerful terahertz (THz) radiation based on laser-solid interactions is proposed. When a -polarized femtosecond laser impinges obliquely on a plane…
Spin-orbit interaction in a high-power laser irradiated micro-scale plasma waveguide
Longqing Yi, Ke Hu, Tünde Fülöp
Light carries angular momentum as spin and orbital components. The spin-orbit interaction (SOI) of light refers to phenomena in which the spin (left or right circular polarisation)…
Relativistic light synthesis of femtosecond sawtooth pulses
K. Hu, H. -C. Wu
Formation of femtosecond sawtooth pulses by high harmonic generation from relativistic oscillating mirrors is studied. For oblique incidence of -polarized laser pulse, one can e…