Researchers develop all-optical switches that could lead to faster computer processors

https://phys.org/news/2023-12-all-optical-faster-processors.html

"no resistive-capacitive delays with photonics, so theoredically 1,000X faster clock speeds...  aluminum-doped zinc oxide picosecond switching time, plasmonic titanium nitride >100X slower... bimetallic nature of switch enables multiple purposes depending on wavelength used... slower applications like memory storage switch with 1 material; for faster applications, switch with other one... switch state when switched on by light beam functioning as light absorbers or reflectors depending on operation wavelength"

Related: All-Optical Computer Unveiled With 100 GHz Clock Speed
https://www.discovermagazine.com/technology/all-optical-computer-unveiled-with-100-ghz-clock-speed