Figure 1
From: Transient Second Harmonic Generation Induced by Single Cycle THz pulses in Ba0.8Sr0.2TiO3/MgO

(a) The electric field waveform of the THz pulse transmitted through the sample and (b) dependence of the SHG intensity from Ba0.8Sr0.2TiO3/MgO on time delay for the case of co-propagating pump (THz) and probe (near infrared) pulses.