Detection and Generation of THz Pulses with the Use of Lithium Niobate Sandwich-Structure and Other Birefringent Materials

Experimental results on Cherenkov-type nonlinear optical generation and detection of pulsed terahertz radiation by using a structure with a thin lithium niobate layer attached to an output Si prism are presented. The structure provides high optical-to-terahertz conversion efficiency for a broad range of laser pump wavelengths and high detection sensitivity.