Ultra-high-Q dielectric metasurface for polarization conversion

2019 ◽  
Author(s):  
J. Francisco Algorri ◽  
Dimitrios Zografopoulos ◽  
Antonio Ferraro ◽  
Braulio Garcia ◽  
Ricardo Vergaz ◽  
...  
Keyword(s):  
Polarization Conversion ◽  
High Q ◽  
Dielectric Metasurface

Refractive Index Sensing Utilizing Tunable Polarization Conversion Efficiency With Dielectric Metasurface

2021 ◽  
Vol 39 (2) ◽  
pp. 682-687
Author(s):  
Yong Liang ◽  
Qilong Tan ◽  
Wen Zhou ◽  
Xia Zhou ◽  
Ziang Wang ◽  
...  
Keyword(s):  
Refractive Index ◽  
Conversion Efficiency ◽  
Polarization Conversion ◽  
Refractive Index Sensing ◽  
Dielectric Metasurface

Polarization conversion based on an all-dielectric metasurface for optical fiber applications

2017 ◽  
Vol 50 (33) ◽  
pp. 334001 ◽  
Author(s):  
Tongming Liu ◽  
Sen Yang ◽  
Donghua Tang ◽  
Haixia Da ◽  
Rui Feng ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Polarization Conversion ◽  
Optical Fiber Applications ◽  
Dielectric Metasurface

High Q-Factor All-Dielectric Metasurface Based on Bound States in the Continuum

2019 ◽  
Author(s):  
Shaimaa I. Azzam ◽  
Krishnakali Chaudhuri ◽  
Vladimir M. Shalaev ◽  
Alexandra Boltasseva ◽  
Alexander V. Kildishev
Keyword(s):  
Bound States ◽  
Q Factor ◽  
High Q ◽  
Dielectric Metasurface ◽  
The Continuum

scholarly journals Switchable Electromagnetically Induced Transparency with Toroidal Mode in a Graphene-Loaded All-Dielectric Metasurface

Nanomaterials ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 1064 ◽  
Author(s):  
Guanghou Sun ◽  
Sheng Peng ◽  
Xuejin Zhang ◽  
Yongyuan Zhu
Keyword(s):  
Electromagnetically Induced Transparency ◽  
Modulation Depth ◽  
Optical Filters ◽  
Destructive Interference ◽  
Quality Factors ◽  
High Q ◽  
Dipole Resonance ◽  
Q Factors ◽  
Induced Transparency ◽  
Dielectric Metasurface

Active photonics based on graphene has attracted wide attention for developing tunable and compact optical devices with excellent performances. In this paper, the dynamic manipulation of electromagnetically induced transparency (EIT) with high quality factors (Q-factors) is realized in the optical telecommunication range via the graphene-loaded all-dielectric metasurface. The all-dielectric metasurface is composed of split Si nanocuboids, and high Q-factor EIT resonance stems from the destructive interference between the toroidal dipole resonance and the magnetic dipole resonance. As graphene is integrated on the all-dielectric metasurface, the modulation of the EIT window is realized by tuning the Fermi level of graphene, engendering an appreciable modulation depth of 88%. Moreover, the group velocity can be tuned from c/1120 to c/3390. Our proposed metasurface has the potential for optical filters, modulators, and switches.

High-Q All-Dielectric Metasurface: Super and Suppressed Optical Absorption

ACS Photonics ◽  
2020 ◽  
Vol 7 (6) ◽  
pp. 1436-1443 ◽  
Author(s):  
Jingyi Tian ◽  
Qiang Li ◽  
Pavel A Belov ◽  
Ravindra Kumar Sinha ◽  
Weiping Qian ◽  
...  
Keyword(s):  
Optical Absorption ◽  
High Q ◽  
Dielectric Metasurface

scholarly journals Excitation of high Q toroidal dipole resonance in an all-dielectric metasurface

2020 ◽  
Vol 10 (2) ◽  
pp. 358 ◽  
Author(s):  
Xin Luo ◽  
Xiangjun Li ◽  
Tingting Lang ◽  
Xufeng Jing ◽  
Zhi Hong
Keyword(s):  
High Q ◽  
Dipole Resonance ◽  
Dielectric Metasurface
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