Composite Metal-Dielectric-Metal Nanowire Grating

Broadband high extinction ratio

A composite metal-dielectric-metal nanowire grating based on aluminum and PMMA achieves high extinction ratio and high transmittance across the visible spectrum, and can be fabricated over large areas at low cost via nanoimprint lithography.

Li, Yahong · Man, Li · Nianyu, Zou · Shan, Jiang · Li, Desheng · Fu, Yuegang

European Physical Journal Plus 2024

Specifications

Theoretical extinction ratio

{'zh': '', 'en': '50'} dB

TM-polarized transmittance

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

实测消光比最高

{'zh': '38.3', 'en': ''} dB

Advantages

Period 180 nm, fill ratio 0.5