Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Gas cloud imaging with uncooled infrared spectroscopy is influenced by ambient temperature, complicating the quantitative detection of gas concentrations in open environments. To solve the aforementioned challenges, the paper analyzes the main factors influencing detection errors in uncooled infrared spectroscopy gas cloud imaging and proposes a temperature correction method to address them. Firstly, to mitigate the environmental effects on the radiative temperature output of uncooled infrared detectors, a snapshot-based, multi-band infrared temperature compensation algorithm incorporating environmental awareness was developed. This algorithm enables precise infrared radiation prediction across a wide operating temperature range. Validation tests conducted over the full temperature range of 0 °C to 80 °C demonstrated that the prediction error was maintained within ±0.96 °C. Subsequently, temperature compensation techniques were integrated, resulting in the development of a comprehensive uncooled infrared spectroscopy gas cloud imaging detection method. Ultimately, the detection limits for SF6, ethylene, cyclohexane, and ammonia were enhanced by 50%, 33%, 25%, and 67%, respectively.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11598487 | PMC |
| http://dx.doi.org/10.3390/s24227173 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Design of hybrid 2D/quantum dot sensor materials for low-cost, uncooled mid-infrared sensing.
Nanotechnology
September 2025
Department of Electrical and Computer Engineering, New Jersey Institute of Technology, University Heights, Newark, New Jersey, 07102, UNITED STATES.
Uncooled mid-wave infrared (MWIR) image sensors, which are compact, lightweight, and energy-efficient, are expected to take a dominant position in the future infrared market. As an alternative to traditional epitaxially-grown infrared semiconductors used in high-performance cryo-cooled MWIR imagers, the concept of hybrid sensor materials is gaining attention. Specifically, hybrid structures combining two-dimensional (2D) materials, known for their superior carrier transport properties, with colloidal quantum dots (QDs), which offer excellent optical properties, have shown record-high room-temperature infrared responsivities with spectral responses extending to short-wave infrared (SWIR).
View Article and Find Full Text PDFUncooled and Broadband PbSe Colloidal-Quantum-Dot Short-Wave Infrared Photodetectors.
Nano Lett
September 2025
School of Optical and Electronic Information, Huazhong University of Science and Technology (HUST), Wuhan, Hubei 430074, People's Republic of China.
Solution-processed PbSe colloidal quantum dots (CQDs) are promising candidates for building high-performance infrared photodetectors due to their widely tunable band gaps and high carrier mobility. However, the development of PbSe CQD photodetectors has been hampered by their poor electronic properties. In this work, a monomer-assisted ligand exchange (MLE) strategy was developed that leads to PbSe CQDs with improved electronic properties including increased carrier mobility, extended carrier lifetime, and enhanced electronic uniformity.
View Article and Find Full Text PDFInfrared image super resolution with structure prior from uncooled infrared readout circuit.
Sci Rep
August 2025
School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China.
Infrared images, rich in temperature information, have a broad range of applications. However, limitations in infrared imaging mechanisms and the manufacturing processes typically prevent uncooled infrared detector arrays from exceeding a resolution of one megapixel. Consequently, designing an efficient infrared image Super-Resolution (SR) algorithm is of significant importance.
View Article and Find Full Text PDFUncooled Ultraviolet to Mid-infrared Multifunctional Photodetectors Based on Monolayer Graphene on Pb[(MgNb)Ti]O Substrate.
ACS Appl Mater Interfaces
September 2025
School of Physics, Beijing Institute of Technology, Beijing 100081, P. R. China.
Graphene heralded a new era in optoelectronic research and prospective multifunctional devices. Here, we demonstrate uncooled ultraviolet to mid-infrared multifunctional photodetectors based on monolayer graphene on a Pb[(MgNb)Ti]O (PMNPT) substrate, with capabilities in photodetection, memory, and signal processing. Using weak broad-spectral light, photoexcited holes in graphene are attracted by the stable spontaneous polarization within the PMNPT, inducing a gate tunable giant photogating effect.
View Article and Find Full Text PDFOptical resonators with high Q-factor are of interest in infrared thermal sensors for their high-temperature sensitivity. Thin-film lithium niobate (LN), with low propagation loss in near-infrared, is a competitive material for a comparative advantage in thermal-optic coefficient and wider absorption range from longwave infrared (LWIR) to terahertz frequencies if compared with SiN and SiO. Here, we present an LWIR sensor on the LN-photonic platform, where a high-Q microring resonator is monolithically integrated with a broadband LWIR radiation absorber, compatible with the multilayer-stacked LN photonic circuits.
View Article and Find Full Text PDF