Wednesday, January 6, 2016

Abstract-Terahertz Detection: Extreme Sensitivity of Room-Temperature Photoelectric Effect for Terahertz Detection



http://onlinelibrary.wiley.com/doi/10.1002/adma.201670005/full

Terahertz (THz) is the gap between infrared and microwave frequencies. THz detection is still a formidable challenge even though no suitable theory has been built until now, although considerable mechanisms have been proposed. On page 112, Z. Huang and co-workers propose a unique theory to realize an excellent photoelectric effect and experimentally demonstrate its extreme sensitivity to room-temperature THz detection.

1 comment:

JAMES GRANT said...

I don't understand how this effect can be called photoelectric. You need photon energies of a few ev to eject an electron from the metal into the semiconductor. THz waves only have 10s meVs of energy therefore they are unable to illict the photoelectric effect.

Can anyone shed some light on the physical basis of the detection mechanism?