Intel has been doing it or researching it since 2009...
IBM has their Holey Optochip.
There are IEEE articles regarding this from 2002.
Even at this point they are mainly research topics.
Makes sense in giant server farms, but not in a SOHO setup.
Plenty of reading here:
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Physics? Ha! This is clearly magic and devilry at work. Prepare firewood! We have witches to burn!
Senior Engineering Technician (AEET).