Abstract
Topological insulators are innovative materials with semiconducting bulk together with surface states forming a Dirac cone, which ensure metallic conduction in the surface plane. Therefore, topological insulators represent an ideal platform for optoelectronics and photonics. The recent progress of science and technology based on topological insulators enables the exploitation of their huge application capabilities. Here, we review the recent achievements of optoelectronics, photonics, and plasmonics with topological insulators. Plasmonic devices and photodetectors based on topological insulators in a wide energy range, from terahertz to the ultraviolet, promise outstanding impact. Furthermore, the peculiarities, the range of applications, and the challenges of the emerging fields of topological photonics and thermo-plasmonics are discussed.
Highlights
Topological insulators (TIs) represent a novel quantum phase of matter,[1] characterized by a semiconducting bulk and topologically protected surface states.[2,3,4,5]
Topological surface states (TSS) are robust against scattering processes from nonmagnetic impurities.[16]
As a consequence of the timereversal symmetry, charge carriers from topologically protected surface states carry current with minimal dissipation with a subsequent reduction of the low-frequency electronic noise.[17,18]
Summary
Topological insulators (TIs) represent a novel quantum phase of matter,[1] characterized by a semiconducting bulk and topologically protected surface states.[2,3,4,5]. Optoelectronic devices, plasmonics, and photonics with topological insulators We review applications exploiting plasmons, supported by TIs in the fields of optoelectronics, photonics, and thermo-plasmonics.
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