DARPA Creates 0.85 THz Solid State Receiver

Another terrible article summary.

In 2010, a solid-state device at 0.67THz was achieved. [irconnect.com] In 2012, that effort is up to 0.85 THz. Progress is slow, but continuing.

Diode-type CMOS imagers for terahertz radiation [laserfocusworld.com] have been built. Those convert terahertz radiation into DC, which can then be amplified by standard techniques. But diodes don't have gain. That's why the original article emphasizes that this new device has gain.

There are terahertz lasers, waveguides [sandia.gov], antennas, and other components that work up there. The situation is much like radar during WWII; there were a few components that could do specific things at radar frequencies (then 60MHz to 1.2GHz), but general electronics wasn't there yet. Most of the electronics in radars of that period ran at far lower speeds. They still worked.

Source: http://rss.slashdot.org/~r/Slashdot/slashdotScience/~3/nompUiI3JiQ/darpa-creates-085-thz-solid-state-receiver

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