scholarly journals Real-time and non-destructive hydrocarbon gas sensing using mid-infrared integrated photonic circuits

RSC Advances ◽  
2020 ◽  
Vol 10 (13) ◽  
pp. 7452-7459 ◽  
Author(s):  
Tiening Jin ◽  
Junchao Zhou ◽  
Pao Tai Lin
Keyword(s):  
Real Time ◽  
Gas Sensing ◽  
Gas Detection ◽  
Photonic Circuits ◽  
Mid Infrared ◽  
Ir Sensor ◽  
Hydrocarbon Gas ◽  
Non Destructive

A chip-scale mid-infrared (mid-IR) sensor was developed for hydrocarbon gas detection.

scholarly journals Mid-Infrared Tunable Laser-Based Broadband Fingerprint Absorption Spectroscopy for Trace Gas Sensing: A Review

2019 ◽  
Vol 9 (2) ◽  
pp. 338 ◽  
Author(s):  
Zhenhui Du ◽  
Shuai Zhang ◽  
Jinyi Li ◽  
Nan Gao ◽  
Kebin Tong
Keyword(s):  
Absorption Spectroscopy ◽  
Gas Sensing ◽  
Tunable Laser ◽  
Gas Detection ◽  
Trace Gas ◽  
Spectroscopic Techniques ◽  
Trace Gas Detection ◽  
Absorption Bands ◽  
Mid Infrared ◽  
Broadband Absorption

The vast majority of gaseous chemical substances exhibit fundamental rovibrational absorption bands in the mid-infrared spectral region (2.5–25 μm), and the absorption of light by these fundamental bands provides a nearly universal means for their detection. A main feature of optical techniques is the non-intrusive in situ detection of trace gases. We reviewed primarily mid-infrared tunable laser-based broadband absorption spectroscopy for trace gas detection, focusing on 2008–2018. The scope of this paper is to discuss recent developments of system configuration, tunable lasers, detectors, broadband spectroscopic techniques, and their applications for sensitive, selective, and quantitative trace gas detection.

scholarly journals Broadly tunable mid-infrared VECSEL for multiple components hydrocarbon gas sensing

2014 ◽  
Vol 117 (3) ◽  
pp. 935-939 ◽  
Author(s):  
J. M. Rey ◽  
M. Fill ◽  
F. Felder ◽  
M. W. Sigrist
Keyword(s):  
Gas Sensing ◽  
Mid Infrared ◽  
Multiple Components ◽  
Hydrocarbon Gas

scholarly journals Swept-wavelength mid-infrared fiber laser for real-time ammonia gas sensing

APL Photonics ◽  
2019 ◽  
Vol 4 (2) ◽  
pp. 020801 ◽  
Author(s):  
R. I. Woodward ◽  
M. R. Majewski ◽  
D. D. Hudson ◽  
S. D. Jackson
Keyword(s):  
Fiber Laser ◽  
Real Time ◽  
Gas Sensing ◽  
Ammonia Gas ◽  
Mid Infrared

scholarly journals Flexible Mid-infrared Photonic Circuits for Real-time and Label-Free Hydroxyl Compound Detection

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Tiening Jin ◽  
Hao-Yu Greg Lin ◽  
Tom Tiwald ◽  
Pao Tai Lin
Keyword(s):  
Real Time ◽  
Label Free ◽  
Photonic Circuits ◽  
Mid Infrared ◽  
Free Hydroxyl

Halogenated hydrocarbon gas sensing by rotational absorption spectroscopy in the 220–330 GHz frequency range

2021 ◽  
Vol 127 (8) ◽  
Author(s):  
T. E. Rice ◽  
M. A. Z. Chowdhury ◽  
M. W. Mansha ◽  
M. M. Hella ◽  
I. Wilke ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Gas Sensing ◽  
Frequency Range ◽  
Halogenated Hydrocarbon ◽  
Hydrocarbon Gas

scholarly journals High-Sensitive Numerical Gas Detection Using LSPR Effect and Fano Resonance in a Slotted MDM Structure

2021 ◽  
Author(s):  
Hai Liu ◽  
Benlei Zhao ◽  
Xu Zhang ◽  
Hancheng Zhang ◽  
Bo Wu ◽  
...  
Keyword(s):  
Fano Resonance ◽  
Gas Sensing ◽  
Field Enhancement ◽  
Fast Response ◽  
Gas Detection ◽  
Localized Surface Plasmon ◽  
Gas Sensitivity ◽  
Combined Use ◽  
Coherent Coupling ◽  
Lspr Effect

AbstractA high-sensitive numerical measurement of methane based on the combined use of the localized surface plasmon resonance (LSPR) and Fano resonance in a slotted metal-dielectric-metal (MDM) periodic structure is numerically investigated. A groove is etched in an original MDM structure to excite the diploe mode at both sides of the groove, and the coherent coupling of two dipole modes is enhanced to realize a fast response, which is beneficial to gas-sensing. The influence of geometric parameters on the reflection spectra and methane sensitivity are analyzed to obtain optimal geometry. Moreover, an etching ring is introduced on the top metal to further raise the coupling area and coupling strength. The Fano resonance is subtly integrated into the optimized structure with asymmetry to achieve greater gas sensitivity. After the introduction of the Fano resonance, the field enhancement caused by the LSPR effect becomes greater and the methane sensitivity can reach up to 8.421 nm/% in numerical calculations, which increases 56.8% more than that of the original one. The combined use of the LSPR and Fano resonance in an optimized MDM structure provides an effective method for high-sensitive gas detection.

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