English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The design of a self-complementary metallic checkerboard pattern achievesbroadband, dispersion-less, and maximized absorption, concentrating in the deepsubwavelength resistive connections between squares, without any theoreticallimitation on the energy absorbing area. Here, we experimentally andnumerically investigate the electromagnetic response in the limit of extremelysmall connections. We show that finite conductivity and randomness in anear-self-complementary checkerboard pattern plays a crucial role in producinga frequency-independent energy loss in the terahertz frequency region. Heremetals behave like an almost perfect conductor. When the checkerboard patternapproaches the perfect self-complementary pattern, the perfect conductorapproximation spontaneously breaks down, owing to the finite conductivity atthe nano- scale connection, leading to broadband absorption. It is also shownthat the random connections between metallic squares also lead to broadband andmaximized energy loss through scattering loss, similar to finite conductivity.

Energy loss of terahertz electromagnetic waves by nano-sized connections in near-self-complementary metallic checkerboard patterns