We present a THz time-domain spectroscopy system with MNA crystal as emitter/detector. The THz source uses optical rectification of 1036nm laser pulses, achieves 11mW at 100kHz and >9THz bandwidth. High efficiency (0.13%) despite 8W excitation. Validated up to 8THz.

High-power Ytterbium laser-driven THz sources: Our comprehensive arxiv article reviews the spectacular progress toward watt-level THz generation. Tremendous laser advancements will revolutionize THz applications in science and technology!