Re:After 50 years of effort, researchers made silicon emit l...
by miscPerson on Saturday April 11, 2020 @02:08PM
(#22843093)
Yep, and I was looking for something applied.
Like most things, the concept is much simpler than making one work — and I was hoping I could find some papers on the applied side of photon delay lines. (Since OP commented it was related to his/her PhD.)
Re:After 50 years of effort, researchers made silicon emit l...
by hinkley on Saturday April 11, 2020 @01:18PM
(#22842784)
I thought the mercury delay lines were the craziest thing I’d heard about in computer evolution until I learned about using a cathode ray tube as memory.
Re:After 50 years of effort, researchers made silicon emit l...
by jacquesm on Saturday April 11, 2020 @02:03PM
(#22843065)
In a way that is a delay line too, the phosphor decay time allows you to read out the bits a bit later than you put them in. The big advantage is that it is theoretically random access.
https://www.computerhistory.org/storageengine/edsac-computer...
Not optical, but piezo electrical, usually with a crystal or air as the medium instead of mercury. Optical is much the same principle, a feedback loop incorporating the delay line, so the same bits get re-injected over and over again and can only be read out at specific points in time.