Phys.org August 10, 2021
Previous research was limited to modifying either absorption or refraction in metamaterials. Researchers at Cornell University have demonstrated that if both properties are modulated in time, it is possible to absorb electromagnetic waves much more efficiently than in a static structure, or in a structure in which either one of these two degrees of freedom is modulated individually. They combined these two aspects together to create a much more effective system. The findings may lead to the development of new metamaterials with wave absorption and scattering properties that far outperform what is currently available. The research pushes the limits of electromagnetic wave absorption by using another degree of freedom…read more. Open Access TECHNICAL ARTICLEÂ
Broadband reflectionless absorption induced by spectral causality…Credit: Optica Vol. 8, Issue 8, pp. 1040-1049 (2021)Â