Cascaded nanocavity metasurface

Strong mid-to-long IR absorption

A cascaded metal-insulator-metal nanocavity metasurface that achieves high absorption over the mid-to-long IR range with incident-angle insensitivity, suitable for uncooled IR imaging.

Shenghua, Duan · 73601791 · Liu, Taige · 75600471 · Shi, Jiashuo · Zhang, Xinyu

Optical Materials Express 2024

Specifications

Average absorption

{'zh': '85', 'en': '>85'} %

Advantages

Insensitive to beam incident angle