AUTHOR=Rojas Yanez Libertad , Hu Huatian , Ciracì Cristian , Palomba Stefano TITLE=Plasmonic slot waveguides: a quantum leap in nonlinear nanophotonics JOURNAL=Frontiers in Nanotechnology VOLUME=7 YEAR=2025 URL=https://www.frontiersin.org/journals/nanotechnology/articles/10.3389/fnano.2025.1536462 DOI=10.3389/fnano.2025.1536462 ISSN=2673-3013