Full text loading...
(a) Geometry of terahertz generation in oriented BFO. The pump light is polarized in the plane. Static ferroelectric polarization is along the  direction (the diagonal of the cube). (b) Terahertz waveforms detected in transmission and reflection geometries, pump fluence of . The main terahertz pulse and the first Fabry–Pérot reflection are shown.
Amplitude of the main terahertz pulse as a function of the angle between the axis and the  direction in the crystal while rotating the crystal about the axis. The solid line shows the simulated nonlinear polarization . The inset shows the main terahertz pulse at and , the positions of maximum positive and negative terahertz amplitudes.
Frequency-domain spectra of the waveforms emitted from and from the  oriented ZnTe crystal. The terahertz waveforms were measured with pump powers of 150 and 28 mW, respectively. The inset shows the amplitude of the terahertz wave from detected in transmission as a function of the pump power.
Upper panel: amplitude transmission spectra of crystal for terahertz light polarized in the plane of the electric dipole (solid line) and perpendicular to the plane (dotted line). Lower panel: real and imaginary parts of the refractive index for the polarizations displayed in the upper panel.
Article metrics loading...