scholarly journals Tunable broadband plasmonic field enhancement on a graphene surface using a normal-incidence plane wave at mid-infrared frequencies

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Tian Zhang ◽  
Lin Chen ◽  
Bing Wang ◽  
Xun Li
Keyword(s):  
Plane Wave ◽  
Field Enhancement ◽  
Normal Incidence ◽  
Mid Infrared ◽  
Graphene Surface ◽  
Incidence Plane ◽  
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.

Normal incidence detection of ultraviolet, visible, and mid-infrared radiation in a single GaAs/AlGaAs device

2009 ◽  
Vol 34 (13) ◽  
pp. 2036 ◽  
Author(s):  
G. Ariyawansa ◽  
P. V. V. Jayaweera ◽  
A. G. U. Perera ◽  
S. G. Matsik ◽  
M. Buchanan ◽  
...  
Keyword(s):  
Infrared Radiation ◽  
Normal Incidence ◽  
Mid Infrared

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

Normal-Incidence p-Type Si/SiGe Mid-Infrared Detector with Background-Limited Performance up to 85 K

1998 ◽  
pp. 122-126
Author(s):  
Peter Kruck ◽  
Manfred Helm ◽  
Günther Bauer ◽  
Joachim F. Nützel ◽  
Gerhard Abstreiter
Keyword(s):  
Infrared Detector ◽  
Normal Incidence ◽  
Mid Infrared ◽  
P Type

scholarly journals Estimation of resonance characteristics of single-layer surface-plasmon sensors in liquid solutions using Fano’s approximation in the visible and infrared regions

2019 ◽  
Vol 43 (4) ◽  
pp. 596-604 ◽  
Author(s):  
D.V. Nesterenko ◽  
R.A. Pavelkin ◽  
S. Hayashi
Keyword(s):  
Surface Plasmon ◽  
Single Layer ◽  
Field Enhancement ◽  
Coupled Mode Theory ◽  
Mid Infrared ◽  
Coupled Mode ◽  
Sensing Applications ◽  
Resonance Response ◽  
Liquid Solutions ◽  
Support Excitation

In this work, we consider the use of planar sensing structures, which support excitation of surface plasmon polarition (SPP) modes, for detecting changes in solvents, i.e. water, ethanol, isopropanol. In the structures under study, SPP modes propagate along the interfaces between metals and general solvents. The analysis of characteristics of the resonance response is based on Fano’s approximation within the coupled-mode theory in the visible and infrared regions. The maximum sensitivity and field enhancement are revealed in the near- and mid-infrared regions in the case of ethanol and isopropanol, which enables sensing applications beyond the regions of water absorption.

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