Graphene gas sensor with mid-infrared plasmons tuned by reversible chemical doping

2021 ◽  
Author(s):  
Nestor Jr. Bareza ◽  
Bruno Paulillo ◽  
Kavitha K. Gopalan ◽  
Rose Alani ◽  
Valerio Pruneri
Keyword(s):  
Gas Sensor ◽  
Chemical Doping ◽  
Mid Infrared

Mid-infrared ChG-on-MgF2 waveguide gas sensor based on wavelength modulation spectroscopy

2021 ◽  
Author(s):  
Mingquan Pi ◽  
Chuantao Zheng ◽  
Huan Zhao ◽  
Zihang Peng ◽  
Jiaming Lang ◽  
...  
Keyword(s):  
Gas Sensor ◽  
Wavelength Modulation Spectroscopy ◽  
Wavelength Modulation ◽  
Mid Infrared ◽  
Modulation Spectroscopy

scholarly journals Antiresonant Hollow-Core Fiber-Based Dual Gas Sensor for Detection of Methane and Carbon Dioxide in the Near- and Mid-Infrared Regions

Sensors ◽  
2020 ◽  
Vol 20 (14) ◽  
pp. 3813 ◽  
Author(s):  
Piotr Jaworski ◽  
Paweł Kozioł ◽  
Karol Krzempek ◽  
Dakun Wu ◽  
Fei Yu ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Gas Sensor ◽  
Gas Sensing ◽  
Simultaneous Detection ◽  
Hollow Core ◽  
Mid Infrared ◽  
Sensing Applications ◽  
Core Fiber ◽  
Sensor Configuration ◽  
Carbon Dioxide Co2

In this work, we present for the first time a laser-based dual gas sensor utilizing a silica-based Antiresonant Hollow-Core Fiber (ARHCF) operating in the Near- and Mid-Infrared spectral region. A 1-m-long fiber with an 84-µm diameter air-core was implemented as a low-volume absorption cell in a sensor configuration utilizing the simple and well-known Wavelength Modulation Spectroscopy (WMS) method. The fiber was filled with a mixture of methane (CH4) and carbon dioxide (CO2), and a simultaneous detection of both gases was demonstrated targeting their transitions at 3.334 µm and 1.574 µm, respectively. Due to excellent guidance properties of the fiber and low background noise, the proposed sensor reached a detection limit down to 24 parts-per-billion by volume for CH4 and 144 parts-per-million by volume for CO2. The obtained results confirm the suitability of ARHCF for efficient use in gas sensing applications for over a broad spectral range. Thanks to the demonstrated low loss, such fibers with lengths of over one meter can be used for increasing the laser-gas molecules interaction path, substituting bulk optics-based multipass cells, while delivering required flexibility, compactness, reliability and enhancement in the sensor’s sensitivity.

scholarly journals Design of a Multimode Interferometer-Based Mid-Infrared Multispecies Gas Sensor

2020 ◽  
Vol 20 (22) ◽  
pp. 13426-13435 ◽  
Author(s):  
Loic Bodiou ◽  
Yannick Dumeige ◽  
Simone Normani ◽  
Geoffrey Louvet ◽  
Petr Nemec ◽  
...  
Keyword(s):  
Gas Sensor ◽  
Mid Infrared

scholarly journals Mid-Infrared semiconductor laser based trace gas sensor technologies: recent advances and applications

2012 ◽  
Author(s):  
Frank K. Tittel ◽  
Rafal Lewicki ◽  
Mohammad Jahjah ◽  
Yufei Ma ◽  
Przemyslaw Stefanski
Keyword(s):  
Semiconductor Laser ◽  
Gas Sensor ◽  
Trace Gas ◽  
Mid Infrared ◽  
Recent Advances

Multispecies Single Light-Emitting Diode Mid-Infrared Gas Sensor for Space Habitats and Vehicles

New Space ◽  
2020 ◽  
Vol 8 (2) ◽  
pp. 77-86
Author(s):  
Akshita Parupalli ◽  
Anthony C. Terracciano ◽  
Zachary Loparo ◽  
Kyle Thurmond ◽  
Justin Urso ◽  
...  
Keyword(s):  
Gas Sensor ◽  
Light Emitting Diode ◽  
Mid Infrared ◽  
Light Emitting
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