Fs-laser-induced microplasmas as efficient broadband terahertz sources
Résumé
We investigate THz radiation from a two-color fs-laser-induced microplasma acting as a point like emitter that is polarized as the second harmonic laser field. The transition to forward emission is analyzed by enlarging the plasma size, leading to conversion efficiencies above 10−4 for 10-μJ pulses.
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