Active control and switching of broadband electromagnetically induced transparency in symmetric metadevices

• Published in: Applied physics letters Vol. 111; no. 2
• Main Authors: Yahiaoui, Riad, Manjappa, Manukumara, Srivastava, Yogesh Kumar, Singh, Ranjan
• Format: Journal Article
• Language: English
• Published: Melville American Institute of Physics 10.07.2017
• Subjects: Active control; Applied physics; Bandwidths; Broadband; Broken symmetry; Coupling; Filtration; Infrared radiation; Light beams; Metamaterials; Symmetry; Terahertz frequencies

Electromagnetically induced transparency (EIT) arises from coupling between the bright and dark mode resonances that typically involve subwavelength structures with broken symmetry, which results in an extremely sharp transparency band. Here, we demonstrate a tunable broadband EIT effect in a symmet...