Broad spectral tuning of ultra-low-loss polaritons in a van der Waals crystal by intercalation.
Taboada-Gutiérrez J, Álvarez-Pérez G, Duan J, Ma W, Crowley K, Prieto I, Bylinkin A, Autore M, Volkova H, Kimura K, Kimura T, Berger MH, Li S, Bao Q, Gao XPA, Errea I, Nikitin AY, Hillenbrand R, Martín-Sánchez J, Alonso-González P.
Taboada-Gutiérrez J, et al.
Nat Mater. 2020 Sep;19(9):964-968. doi: 10.1038/s41563-020-0665-0. Epub 2020 Apr 13.
Nat Mater. 2020.
PMID: 32284598
Here, we demonstrate that intercalation of Na atoms in the van der Waals semiconductor alpha-V(2)O(5) enables a broad spectral shift of Reststrahlen bands, and that the phonon polaritons excited show ultra-low losses (lifetime of 4 1 ps), similar to phonon polaritons in a …
Here, we demonstrate that intercalation of Na atoms in the van der Waals semiconductor alpha-V(2)O(5) enables a broad spectral shift …