Similar: "Photonic chip transforms lightbeam into multiple beams with different properties" (2022) https://news.ycombinator.com/item?id=36580151 https://news.yc

Similar: "Photonic chip transforms lightbeam into multiple beams with different properties" (2022) https://news.ycombinator.com/item?id=36580151 https://news.ycombinator.com/item?id=36580151 : "Universal visible emitters in nanoscale integrated photonics" (2022) https://opg.optica.org/optica/fulltext.cfm?uri=optica-10-7-871&id=532411 https://opg.optica.org/optica/fulltext.cfm?uri=optica-10-7-8... Though maybe also, "Electrons turn piece of wire into laser-like light source" (2023) https://news.ycombinator.com/item?id=33490730 https://news.ycombinator.com/item?id=33490730 : "Coherent Surface Plasmon Polariton Amplification via Free Electron Pumping" (2023) https://doi.org/10.21203/rs.3.rs-1572967/v1 https://doi.org/10.21203/rs.3.rs-1572967/v1