Scheme of single shot terahertz pulse measurement with centrosymmetric materials as the sensor media. (a) Reflecting configuration and (b) transmitting configuration. The polarization direction of the laser and terahertz field are labeled with arrow symbol.
(a) Probe beam spectrum with (red short dot line) and without (black solid line) the terahertz field. The blue dash line is the interferometric SH spectrum after subtracted with the reference SH spectrum. (b) The original terahertz pulse (black solid line), the retrieved terahertz pulse by solving the linear equation (red short dot line), and the rough terahertz pulse by conventional spectral encoding method (blue dash line). .
The probe beam interferometric spectrum (a) and the retrieved terahertz pulse (b), similar to that in Fig. 2. .
(a) The original terahertz pulse (black solid line) and the retrieved terahertz pulse by solving the linear equation (red short dot line). (b) The frequency spectrum of the terahertz pulse.
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