Ultra-compact metamaterial absorber for multiband light absorption at mid-infrared frequencies

2015 ◽  
Vol 8 (10) ◽  
pp. 102001 ◽  
Author(s):  
Dong Xiao ◽  
Keyu Tao
Keyword(s):  
Light Absorption ◽  
Metamaterial Absorber ◽  
Mid Infrared ◽  
Infrared Frequencies

Graphene-Based Tunable Polarization Insensitive Dual-Band Metamaterial Absorber at Mid-Infrared Frequencies

2015 ◽  
Vol 32 (6) ◽  
pp. 068101 ◽  
Author(s):  
Yu-Ping Zhang ◽  
Tong-Tong Li ◽  
Huan-Huan Lv ◽  
Xiao-Yan Huang ◽  
Xiao Zhang ◽  
...  
Keyword(s):  
Metamaterial Absorber ◽  
Dual Band ◽  
Mid Infrared ◽  
Polarization Insensitive ◽  
Infrared Frequencies

scholarly journals Graphene-based tunable hyperbolic microcavity

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Michał Dudek ◽  
Rafał Kowerdziej ◽  
Alessandro Pianelli ◽  
Janusz Parka
Keyword(s):  
Resonant Mode ◽  
Transverse Magnetic ◽  
Mid Infrared ◽  
Nanophotonic Devices ◽  
Wide Range ◽  
Fabry Perot ◽  
Hyperbolic Dispersion ◽  
Low Threshold ◽  
Infrared Frequencies ◽  
Infrared Wave

AbstractGraphene-based hyperbolic metamaterials provide a unique scaffold for designing nanophotonic devices with active functionalities. In this work, we have theoretically demonstrated that the characteristics of a polarization-dependent tunable hyperbolic microcavity in the mid-infrared frequencies could be realized by modulating the thickness of the dielectric layers, and thus breaking periodicity in a graphene-based hyperbolic metamaterial stack. Transmission of the tunable microcavity shows a Fabry–Perot resonant mode with a Q-factor > 20, and a sixfold local enhancement of electric field intensity. It was found that by varying the gating voltage of graphene from 2 to 8 V, the device could be self-regulated with respect to both the intensity (up to 30%) and spectrum (up to 2.1 µm). In addition, the switching of the device was considered over a wide range of incident angles for both the transverse electric and transverse magnetic modes. Finally, numerical analysis indicated that a topological transition between elliptic and type II hyperbolic dispersion could be actively switched. The proposed scheme represents a remarkably versatile platform for the mid-infrared wave manipulation and may find applications in many multi-functional architectures, including ultra-sensitive filters, low-threshold lasers, and photonic chips.

scholarly journals Aperiodic multilayer graphene based tunable and switchable thermal emitter at mid-infrared frequencies

2018 ◽  
Vol 124 (23) ◽  
pp. 233101 ◽  
Author(s):  
S. Sharifi ◽  
Y. M. Banadaki ◽  
V. F. Nezhad ◽  
G. Veronis ◽  
J. P. Dowling
Keyword(s):  
Multilayer Graphene ◽  
Mid Infrared ◽  
Thermal Emitter ◽  
Infrared Frequencies

scholarly journals Near-field imaging of the multi-resonant mode induced broadband tunable metamaterial absorber

RSC Advances ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 5146-5151 ◽  
Author(s):  
Lulu Chen ◽  
Liaoxin Sun ◽  
Hongxing Dong ◽  
Nanli Mou ◽  
Yaqiang Zhang ◽  
...  
Keyword(s):  
Infrared Absorption ◽  
Near Field ◽  
Resonant Mode ◽  
Metamaterial Absorber ◽  
Mid Infrared ◽  
Near Field Imaging ◽  
Metamaterial Absorbers ◽  
Tunable Metamaterial ◽  
Field Imaging

Metamaterial absorbers with tunability have broad prospects for mid-infrared absorption applications.

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