He was doing THz stuff with some other sort of rectifying junction. I think schottkies may be too slow for optical wavelengths.
I've seen papers on schottky-based signal samplers that worked to 250, or maybe 500 GHz.
John
Microwage RF detector
Nov 24, 2009
25 Replies
Oh, that's only 0.5THz? How slow... :-)
Now, back to my fast 20kHz sensor design.
Thanks,
Fred.
I vaguely recall Josephson Junctions ?? ...Jim Thompson
| James E.Thompson, CTO | mens |
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Oh, goodle thz schottky
They do work up there.
John
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IBM...
Somebody did a 70 GS/s 'Scope with them over 25 years ago. It required liquid Helium for the JJ. I think is was 6 bits and 4k sample depth. But that is all i still remember.
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That was Hypres, a 70 GHz analog bandwidth equivalent-time sampler. The scope wasn't very practical and they discontinued it. Tek and HP did the same at room temperature. Their web site is down, so maybe they are gone.
John
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