Researchers Claim World?s First Terahertz IC May Leapfrog Past 5G to 6G - News

I am trying to make sense of these press releases .-)

It appears that they have mixed THz (terahertz) and THF, the ITU standard Tremendously High Frequency 0.3 to 3 THz (1 to 0,1 mm wavelength) also known as sub-millimeter waves.

The heading claims 300 GHz bandwidth, but in reality the operating frequency is close to 300 GHz (1 mm).

It seems to implement a 48 Gbit/s link as 4 x 12 Gbit/s CWDM link using submillimeter lasers (masers?) as transmitters and tunnel diodes as receivers. Thus no electronics work in the terahertz region (> 1 THz),

The plasma frequency in a semiconductor is only a couple of terahertz (depending on the doping). Above there they stop looking like conductors of any sort. So don't hold your breath waiting for terahertz amplifying circuitry.

Cheers

Phil Hobbs

(Who used to build circuits that worked at 200 THz, but weren't semiconductors.)