We report on the study of phonon polaritons modes in thin crystalline flakes of Bi2Se3 and Bi2(Te1-x Sex)3 as a function of the flake thickness, by means of two near-field THz techniques: phase resolved self-detection and THz time domain spectroscopy (TDS-SNOM). Background-free near-field imaging with nanoscale spatial resolution is demonstrated.

Near-field THz detection of phonon-polariton modes in thin flakes of topological insulator materials: Bi2Se3 and Bi(Te1-x Sex)3

Giordano M.;
2019

Abstract

We report on the study of phonon polaritons modes in thin crystalline flakes of Bi2Se3 and Bi2(Te1-x Sex)3 as a function of the flake thickness, by means of two near-field THz techniques: phase resolved self-detection and THz time domain spectroscopy (TDS-SNOM). Background-free near-field imaging with nanoscale spatial resolution is demonstrated.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11567/1005522
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
  • ???jsp.display-item.citation.isi??? ND
social impact