Microdisk array based Weyl semimetal nanofilm terahertz detector.

ABSTRACT: High-performance terahertz wave detectors at room temperature are still urgently required for a wide range of applications. The available technologies, however, are plagued by low sensitivity, narrow spectral bandwidth, complicated structure, and high noise equivalent power (NEP). Here, we have demonstrated a Weyl semimetal surface plasmon-enhanced high-performance terahertz wave detectors which are based on microdisk array deposited WTe₂ nanofilm epitaxially grown on GaN substrate for room temperature operation. With the microdisk array combined the WTe₂ layer, strong terahertz wave surface plasmon polaritons can be generated at the WTe₂-air interfaces, which results in significant improvement in detecting performance. For the 40 μm diameter microdisk arra

SUBMITTER: Song Q 

PROVIDER: S-EPMC11501346 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature