Nonlinear Electromagnetically Induced Transparency by Intensed Terahertz Field

Biaobing Jin; Caihong Zhang; Jingbo Wu; Xiaoqing Jia; Lin Kang; Weiwei Xu; Jian Chen; Masoyoshi Tonouchi; Peiheng Wu

doi:10.3390/optofluidics2017-04372

Previous Article in event

Optical bistability/tristability in a nonlinear core-shell magnetoplasmonic nanoparticle with magnetocontrollability

Next Article in event

Planar Diffractive Lenses

Nonlinear Electromagnetically Induced Transparency by Intensed Terahertz Field

^{*

1},

¹,

¹,

¹,

¹,

¹,

¹,

²,

¹ Research Institute of Superconductor Electronics, School of Electronics Science and Engineering, Nanjing University, Nanjing, China
² Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka 565-0871, Japan

Published: 21 July 2017 by MDPI in The 7th International Multidisciplinary Conference on Optofluidics 2017 session Plasmonics and metamaterials

https://doi.org/10.3390/optofluidics2017-04372

Abstract:

We demonstrate in this paper the tunable electromagnetically induced transparency (EIT) made from superconducting (SC) niobium nitride (NbN) induced by intense terahertz (THz) field. The experimental results and simulation show that bright resonator is altered greatly due to strong and direct coupling to incident intense THz field, while the dark resonator has little coupling with incident THz field via a weak near-filed coupling to the bright-mode resonator. This implies that we can partially control the selective mode or part of metamaterial by introducing the incident intense THz field, which offer an effective manner to design and selectively control the metamaterial, and thus may bring tunable EIT-like metamaterial into novel applications.

Keywords: Nonlinear THz metamaterial, Electromagnetically Induced Transparency

View submission