Terahertz Wave Generation Using the Doppler Effect in Photoexcited Semiconductors

摘要

Doppler frequency up conversion using optically generated electron-hole plasma in a planar transmission line has been investigated as a potential means for generating high power terahertz waves. Experiments performed at millimeter wavelengths have clearly proved that the Doppler frequency conversion with a frequency up conversion ratio of more than five can be achieved in a slotline with an optically excited silicon substrate.