Zincblende semiconductors (GaAs, GaP) show great potential for quasi-phase-matched
(QPM) THz generation because of their small (20 times less than in lithium niobate) …

We overview methods of THz-wave generation using frequency down-conversion in GaAs
with periodically-inverted crystalline orientation. First, we compare different nonlinear-optical …

The authors demonstrate an efficient room temperature source of terahertz radiation using
femtosecond laser pulses as a pump and GaAs structures with periodically inverted …

Continuously tunable and coherent radiation has been obtained in the ranges of 66.5–300
μm and 72.7–237 μm for two configurations of phase-matched difference-frequency …

We overview methods of THz‐wave generation using frequency down‐conversion in GaAs
with periodically‐inverted crystalline orientation. First, we compare different nonlinear …

We developed a Cherenkov phase-matching method for monochromatic THz-wave
generation using the DFG, process with a lithium niobate crystal, which resulted in both high …

We demonstrate an efficient room temperature source of narrow-bandwidth terahertz (THz)
radiation using femtosecond pump pulses and periodic GaAs structure as a nonlinear …

Narrow-band, multi-cycle terahertz (THz) pulses have been generated in the pre-engineered
domain structure of periodically-poled lithium niobate (PPLN) crystals. The mechanism for …

Efficient generation of narrow-band terahertz-wave pulses tunable in the 2-3 THz frequency
range was achieved in periodically-inverted GaAs structures pumped by 100-fs pulses …

We demonstrate the use of optical pulse-shaping technique in conjunction with difference
frequency generation in a non-linear optoelectronic crystal for generating synthesized …