Theoretical and experimental study on the polarization-independent flanged nanowire array infrared absorber.

ABSTRACT: An infrared (IR) absorber is a crucial component for thermal detectors, requiring high absorptance over a broad wavelength range while maintaining low heat capacity for optimal performance. Most thermal detectors use a thin film IR absorber that is suspended in air, supported by a layer beneath it for mechanical stability. However, this support layer increases heat capacity without contributing to IR absorptance, thereby reducing the performance of thermal detectors. In this paper, we introduce a polarization-independent nanowire array absorber using flanged nanowires with a C-shaped cross-section. This C-shaped design provides mechanical stability, eliminating the need for a support layer. Although nanowire array is generally known to exhibit polarization characteristics, the unique struc

SUBMITTER: Kim BJ 

PROVIDER: S-EPMC11564551 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature