Towards topological protection based millimeter wave devices

Anno: 2019

Autori: Gentili GG., Pelosi G., Piccioli F., Selleri S.

Affiliazione autori: Politecn Milan, DEIB, Via Ponzio 34-5, I-20133 Milan, MI, Italy; Univ Firenze, DINFO, Via Santa Marta 3, I-50133 Florence, FI, Italy; CNR, INO, Via Nello Carrara 1, I-50019 Sesto Fiorentino, FI, Italy.

Abstract: The feasibility of topological metawaveguides supporting helical propagation in the microwave range has been recently proven. The advantages of unidirectional propagation supported by such waveguides however can only be exploited in real devices if topological modes are endowed with the capability to interact within themselves as well as with trivial modes. Here we show a modal launcher to interface a topological metawaveguide with conventional circular waveguides with negligible reflection, and we exploit the properties of coupled topological modes to show a proof of concept of a topological contradirectional coupler.

Giornale/Rivista: PHYSICAL REVIEW B

Volume: 100 (12)      Da Pagina: 125108-1  A: 125108-8

Parole chiavi: Mode Analysis; Spin
DOI: 10.1103/PhysRevB.100.125108

Citazioni: 11
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-04-20
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