DARPA chips in on Terahertz research
The next frontier for solid-state electronics, the Terahertz boundary, has come a little closer with DARPA announcing a receiver operating at 850 GHz. Currently, receiving and decoding THz signals requires a frequency down-conversion on the way, because nobody’s produced chips that can operate at such high frequencies. Down- …
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Go with valves instead?
IIRC they are already in this territory.
THz Radio Freqs
IIRC, that is long- to mid- wave IR. I didn't think they were great for penetration.
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