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Type: 
Journal
Description: 
Surface plasmon polaritons (SPPs) are electromagnetic excitations existing at the interface between a metal and a dielectric. SPPs provide a promising path in nanophotonic devices for light manipulation at the micro and nanoscale with applications in optoelectronics, biomedicine, and energy harvesting. Recently, SPPs have been extended to unconventional materials like graphene, transparent oxides, superconductors, and topological systems characterized by linearly dispersive electronic bands. In this case, three‐dimensional Dirac and Weyl semimetals offer a promising frontier for infrared (IR) and terahertz (THz) radiation tuning by topologically‐protected SPPs. In this work, we investigate the THz‐IR optical response, of platinum ditelluride (PtTe2) type‐II Dirac topological semimetal films grown on Si substrates. We detect SPPs generated on microscale ribbon arrays of PtTe2 in the far‐field limit, finding an …
Publisher: 
Publication date: 
11 May 2024
Authors: 

Salvatore Macis, Annalisa D'Arco, Lorenzo Mosesso, Maria Chiara Paolozzi, Silvia Tofani, Luca Tomarchio, Pinaka Pani Tummala, Sara Ghomi, Veronica Stopponi, Eleonora Bonaventura, Chiara Massetti, Davide Codegoni, Andrea Serafini, Paolo Targa, Michele Zacchigna, Alessio Lamperti, Christian Martella, Alessandro Molle, Stefano Lupi

Biblio References: 
Pages: 2400554
Origin: 
Advanced Materials