Design of mid-infrared dielectric metasurface based on cross-like meta-atom

2020 ◽  
pp. 126370
Author(s):  
Xueshen Li ◽  
Shouqian Chen ◽  
Jiaqian Yu ◽  
Xiaotian Shi ◽  
Zhigang Fan
Keyword(s):  
Mid Infrared ◽  
Meta Atom ◽  
Dielectric Metasurface

Mid-infrared polarization devices based on the double-phase modulating dielectric metasurface

2017 ◽  
Vol 50 (25) ◽  
pp. 254001 ◽  
Author(s):  
Zhongyi Guo ◽  
Lihua Tian ◽  
Fei Shen ◽  
Hongping Zhou ◽  
Kai Guo
Keyword(s):  
Mid Infrared ◽  
Double Phase ◽  
Dielectric Metasurface

scholarly journals Dielectric Metasurface-Based High-Efficiency Mid-Infrared Optical Filter

Nanomaterials ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 938 ◽  
Author(s):  
Fei Shen ◽  
Qianlong Kang ◽  
Jingjing Wang ◽  
Kai Guo ◽  
Qingfeng Zhou ◽  
...  
Keyword(s):  
High Efficiency ◽  
Incident Angle ◽  
Optical Filter ◽  
Optical Loss ◽  
Mid Infrared ◽  
Dipole Resonance ◽  
Mode Decomposition ◽  
Wide Range ◽  
Si Nanodisk ◽  
Dielectric Metasurface

Dielectric nanoresonantors may generate both electric and magnetic Mie resonances with low optical loss, thereby offering highly efficient paths for obtaining integrated optical devices. In this paper, we propose and design an optical filter with a high working efficiency in the mid-infrared (mid-IR) range, based on an all-dielectric metasurface composed of silicon (Si) nanodisk arrays. We numerically demonstrate that, by increasing the diameter of the Si nanodisk, the range of the proposed reflective optical filter could effectively cover a wide range of operation wavelengths, from 3.8 μm to 4.7 μm, with the reflection efficiencies reaching to almost 100%. The electromagnetic eigen-mode decomposition of the silicon nanodisk shows that the proposed optical filter is based on the excitation of the electric dipole resonance. In addition, we demonstrate that the proposed filter has other important advantages of polarization-independence and incident-angle independence, ranging from 0° to 20° at the resonance dip, which can be used in a broad range of applications, such as sensing, imaging, and energy harvesting.

scholarly journals Absorption enhancement of thin layer black phosphorous in the mid-infrared with an all-dielectric metasurface

2021 ◽  
Vol 11 (4) ◽  
pp. 1158
Author(s):  
Nan Zhang ◽  
Guanhai Li ◽  
Kai Ou ◽  
Xiaoyan Li ◽  
Jin Chen ◽  
...  
Keyword(s):  
Thin Layer ◽  
Absorption Enhancement ◽  
Mid Infrared ◽  
Black Phosphorous ◽  
Dielectric Metasurface

High-efficiency mid-infrared transmissive Huygens dielectric metasurface

2021 ◽  
Author(s):  
ruirui song ◽  
Wenbin Li ◽  
Qinling Deng ◽  
Shaolin Zhou
Keyword(s):  
High Efficiency ◽  
Mid Infrared ◽  
Dielectric Metasurface

scholarly journals All-dielectric metasurface filters for mid-infrared range

2018 ◽  
Vol 1092 ◽  
pp. 012023
Author(s):  
Zh O Dombrovskaya ◽  
A V Rybina ◽  
A A Belov ◽  
A N Bogolyubov
Keyword(s):  
Infrared Range ◽  
Mid Infrared ◽  
Dielectric Metasurface

scholarly journals Transmissive mid-infrared achromatic bifocal metalens based on dielectric metasurface

2021 ◽  
Author(s):  
Xueshen Li ◽  
chen Shouqian ◽  
Di Wang ◽  
XIAOTIAN SHI ◽  
Fan Zhigang
Keyword(s):  
Mid Infrared ◽  
Dielectric Metasurface

scholarly journals Ultra-Narrow Band Mid-Infrared Perfect Absorber Based on Hybrid Dielectric Metasurface

Nanomaterials ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 1350 ◽  
Author(s):  
Chen ◽  
Chen ◽  
Liu ◽  
Cheng ◽  
Zhou ◽  
...  
Keyword(s):  
Metal Film ◽  
Narrow Band ◽  
Resonance Wavelength ◽  
Perfect Absorber ◽  
Strong Light ◽  
Infrared Thermal Imaging ◽  
Mid Infrared ◽  
Perfect Absorbers ◽  
Film Substrate ◽  
Dielectric Metasurface

Mid-infrared perfect absorbers (PAs) based on metamaterials have many applications in material analysis and spectral detection thanks to the associated strong light–matter interaction. Most of the PAs are built as ‘metal nanostructure’-insulator-metals (MIM). In this paper, we propose an ultra-narrow band absorber based on dielectric metasurface with a metal film substrate. The absorptance comes from the plasmonic absorption in the metal film, where the absorption is enhanced (while the band of that is compressed) by the super cavity effect of the dielectric metasurface. Based on our numerical calculation, the full-width at half-maximum (FWHM) can reach 67 nm at 8 μm (8‰), which is more than two orders of magnitude smaller than the resonance wavelength and much narrower than the theoretical FWHMs of MIM absorbers. Moreover, we studied their application in infrared thermal imaging, which also has more benefits than MIM absorbers. This kind of hybrid dielectric metasurface provides a new route to achieve ultra-narrow band perfect absorbers in the mid-infrared regime and can be broadly applied in detectors, thermal emitters and bio-spectroscopy.

scholarly journals Efficient dielectric metasurface collimating lenses for mid-infrared quantum cascade lasers

2015 ◽  
Vol 23 (26) ◽  
pp. 33310 ◽  
Author(s):  
Amir Arbabi ◽  
Ryan M. Briggs ◽  
Yu Horie ◽  
Mahmood Bagheri ◽  
Andrei Faraon
Keyword(s):  
Quantum Cascade Lasers ◽  
Mid Infrared ◽  
Quantum Cascade ◽  
Cascade Lasers ◽  
Dielectric Metasurface
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