Fig. 2: Temporal and spatial modulation of THz waves and TH generation under bi-chromatic fields.
From: Temporal-spatial manipulation of bi-focal bi-chromatic fields for terahertz radiations
a Measured TH intensity ITH(d, τ) vs the d and τ. b The distribution of THz intensity ITHz(d, τ) as a function of d and τ. c The THz intensities ITHz(τ) projected from (b) at d = 0 mm (red dashed line), d = 1.5 mm (green dash dotted line), and d = 2.5 mm (blue solid line), respectively. d The THz intensities ITHz(d) projected from (b) at τ = 0 fs (yellow circles), τ = 30 fs (cyan diamonds), and τ = 58 fs (magenta right triangles), respectively.
