Work

Dark-mode lightning-rod effect in meta-structures

Year: 2025

Type: article

Abstract: A dark-mode lightning-rod effect has been studied using the meta-structures. In the meta-structure, the metal wires with the tapered terminals are employed as the dark resonators. Due to near-field coupling between the bright and dark modes, electromagnetically induced transparency (EIT) and energy transfer between the incident field and the dark mode can be achieved. The simultaneous dark-mode excitation and surface-charge accumulation near the sharp tip give rise to both spatial confinement and spectral concentration of electromagnetic energy. The enhanced far-field transmission and strong near-field enhancement near the narrow EIT peak may provide a strategy for enhancing the light–matter interactions.

Source: Journal of Applied Physics

DOI: 10.1063/5.0275988

Authors: Ting Xiong, Yong Zhang, Xiao-Gang Yin, Cheng-Ping Huang

Institutions: Nanjing Tech University, Nanjing University of Aeronautics and Astronautics

Language: English

Topic: Metamaterials and Metasurfaces Applications

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,500

Funder: National Natural Science Foundation of China