Study shows optical excitation of hot carriers enables ultrafast dynamic control of nanoscale plasmons

https://phys.org/news/2024-05-optical-hot-carriers-enables-ultrafast.html

"combines metal nanoplasmons' high-speed response with semiconductors' optoelectronic modulation... modulates gold's charge density, nanogaps' conductivity, rendering reversible and ultrafast switching of plasmon resonances, for nanophotonic chips' optoelectronic switches... prepared Au@Cu2-xS core-shell nanoparticles characterizing microstructure... sol-gel yields different shell thicknesses, ideal carrier for realizing ultrafast dynamic control of nanoscale plasmons... stable photonic computing, interconnection"