Dual-channel mid-infrared sensor based on tunable Fabry-Pérot filters for fluid monitoring applications

2018 ◽  
Vol 259 ◽  
pp. 420-427 ◽  
Author(s):  
Markus S. Rauscher ◽  
Michael Schardt ◽  
Michael H. Köhler ◽  
Alexander W. Koch
Keyword(s):  
Infrared Sensor ◽  
Mid Infrared ◽  
Dual Channel ◽  
Fabry Perot ◽  
Monitoring Applications

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 Portable Mid-Infrared Sensor System for Monitoring CO2 and CH4 at High Pressure in Geosequestration Scenarios

ACS Sensors ◽  
2016 ◽  
Vol 1 (4) ◽  
pp. 413-419 ◽  
Author(s):  
Thomas Schädle ◽  
Bobby Pejcic ◽  
Matthew Myers ◽  
Boris Mizaikoff
Keyword(s):  
High Pressure ◽  
Sensor System ◽  
Infrared Sensor ◽  
Mid Infrared

scholarly journals Miniaturized mid-infrared sensor technologies

2007 ◽  
Vol 390 (1) ◽  
pp. 231-237 ◽  
Author(s):  
Seong-Soo Kim ◽  
Christina Young ◽  
Boris Mizaikoff
Keyword(s):  
Infrared Sensor ◽  
Mid Infrared

Hollow Waveguide-Enhanced Mid-Infrared Sensor for Real-Time Exhaled Methane Detection

2016 ◽  
Vol 28 (15) ◽  
pp. 1613-1616 ◽  
Author(s):  
Lin Liu ◽  
Bo Xiong ◽  
Yue Yan ◽  
Jinyi Li ◽  
Zhenhui Du
Keyword(s):  
Real Time ◽  
Infrared Sensor ◽  
Hollow Waveguide ◽  
Mid Infrared ◽  
Methane Detection
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