Assessing the ability to derive rates of polar middle-atmospheric descent using trace gas measurements from remote sensors [PDF]
Atmospheric Chemistry and Physics, 2018 We investigate the reliability of using trace gas measurements from remote sensing instruments to infer polar atmospheric descent rates during winter within 46–86 km altitude. Using output from the Specified Dynamics Whole Atmosphere Community Climate
N. J. Ryan +6 more
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Sensitive detection of methane at 3.3 μm using an integrating sphere and interband cascade laser [PDF]
, 2016 Detection of methane at 3.3μm using a DFB Interband Cascade Laser and gold coated integrating sphere is performed. A 10cm diameter sphere with effective path length of 54.5cm was adapted for use as a gas cell.
Davis, Nicholas M. +3 more
core +1 more source
Towards imaging of atmospheric trace gases using Fabry–Pérot interferometer correlation spectroscopy in the UV and visible spectral range [PDF]
Atmospheric Measurement Techniques, 2019 Many processes in the lower atmosphere including transport, turbulent mixing and chemical conversions happen on timescales of the order of seconds (e.g. at point sources). Remote sensing of atmospheric trace gases in the UV and visible spectral range (UV–
J. Kuhn +6 more
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Chirped-pulse terahertz spectroscopy for broadband trace gas sensing
Optics Express, 2011 We report the first demonstration of a broadband trace gas sensor based on chirp-pulse terahertz spectroscopy. The advent of newly developed solid state sources and sensitive heterodyne detectors for the terahertz frequency range have made it possible to generate and detect precise arbitrary waveforms at THz frequencies with ultra-low phase noise.
Gerecht, Eyal +2 more
openaire +2 more sources
Sensors, 2023 We demonstrate the successful implementation of an artificial neural network (ANN) to eliminate detrimental spectral shifts imposed in the measurement of laser absorption spectrometers (LASs).
Sanghoon Chin +7 more
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Three-dimensional radiative transfer effects on airborne and ground-based trace gas remote sensing [PDF]
Atmospheric Measurement Techniques, 2020 Air mass factors (AMFs) are used in passive trace gas remote sensing for converting slant column densities (SCDs) to vertical column densities (VCDs).
M. Schwaerzel +8 more
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Human Blood Cell Sensing with Platinum Black Electroplated Impedance Sensor [PDF]
, 2007 AC impedance sensing is an important method for biological cell analysis in flow cytometry. For micro impedance cell sensors, downsizing electrodes increases the double layer impedance of the metal-electrolyte interface, thus leaves no sensing zone in ...
Nandra, Mandheerej S. +2 more
core +1 more source
THz QCL-Based Cryogen-Free Spectrometer for in Situ Trace Gas Sensing
Sensors, 2013 We report on a set of high-sensitivity terahertz spectroscopy experiments making use of QCLs to detect rotational molecular transitions in the far-infrared.
Paolo De Natale +5 more
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Recent Development of Gas Sensing Platforms Based on 2D Atomic Crystals
Research, 2021 Sensors, capable of detecting trace amounts of gas molecules or volatile organic compounds (VOCs), are in great demand for environmental monitoring, food safety, health diagnostics, and national defense. In the era of the Internet of Things (IoT) and big
Jiacheng Cao +6 more
doaj +1 more source
Sensors, 2023 Novel optical gas-sensing materials for Au nanoparticle (NP)-modified ZnO nanorod (NR) arrays were fabricated using hydrothermal synthesis and magnetron sputtering on Si substrates.
Baosheng Du +5 more
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