On-chip broadband plasmon-induced transparency based on plasmonic metal-insulator-metal waveguides
Abstract
As an analogue of electromagnetically induced transparency (EIT), plasmon-induced transparency (PIT) has been realized both in plasmonic metamaterial and waveguide structures. Via near-field coupling within unit cells, PIT with broadband could be produced by plasmonic metamaterials, which, however, has not been realized in on-chip plasmonic waveguide structures. Here, we introduce broadband PIT based on a plasmonic metal-insulator-metal (MIM) waveguide system. Utilizing the direct coupling structure, PIT emerges based on an easy-fabricated structure without gap. By tuning coupling distance, the transparent window can be continuously tuned from narrow- to broadband. Such device is promising for on-chip applications on sensing, filtering and slow light over a broad frequency range.
Keywords
Cite
@article{arxiv.1904.10240,
title = {On-chip broadband plasmon-induced transparency based on plasmonic metal-insulator-metal waveguides},
author = {Zhaojian Zhang and Junbo Yang and Siyu Xu and Heng Xu and Yunxin Han and Xin He and Jingjing Zhang and Jie Huang and Dingbo Chen},
journal= {arXiv preprint arXiv:1904.10240},
year = {2019}
}