Scientists at Israel’s Technion have successfully “trapped” light in material just a few atoms thick. They then observed it with their own quantum microscope. It shows that ultra-high-speed fiber optic cables could be made as thin as one nanometer – a thousand times smaller than current cables.

https://www.timesofisrael.com/israeli-scientists-show-they-can-shrink-optical-technology-by-1000-times/

https://www.youtube.com/watch?v=3ooULAbwmLE

https://science.sciencemag.org/content/372/6547/1181