Results 21 to 30 of about 272,217 (266)
Atoms, 2019 Tunable diode laser absorption spectroscopy (TDLAS) is a commonly used technique to measure the temperature and density of atoms or molecules in a gas.
Sven Dickheuer +7 more
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Energies, 2019 Chemical species tomography enables non-invasive measurements of temperatures and concentrations in gas phase processes. In this work, we demonstrate the recently introduced linear hyperspectral absorption tomography (LHAT) on an axisymmetric counterflow
Johannes Emmert +4 more
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Loss tolerant quantum absorption measurement
New Journal of Physics, 2020 The quantum statistics of entangled photon pairs promise greater performance for absorption measurements than can be achieved classically. However, the performance of a quantum approach is easily degraded under a loss of photons caused by experimental ...
Ryo Okamoto +2 more
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Frontiers in Marine Science, 2019 The global distribution of chromophoric dissolved organic matter (CDOM) in the euphotic layer of the Atlantic, Indian, and Pacific oceans (between 35° N and 40° S) was analyzed by absorption spectroscopy during the Malaspina 2010 circumnavigation ...
Francesca Iuculano +8 more
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Quantum Beam Science, 2020 (1) Background: Optical absorption cross-section—the absolute absorption intensity specific to each molecule—of nucleic acid bases enables us to estimate the reaction yields of DNA lesions induced by the exposure to not only photons but also ionizing ...
Kaveenga Rasika Koswattage +2 more
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Entangled Two-Photon Absorption Spectroscopy [PDF]
Accounts of Chemical Research, 2018 The application of quantum states of light such as entangled photons, for example, created by parametric down conversion, has experienced tremendous progress in the almost 40 years since their first experimental realization. Initially, they were employed in the investigation of the foundations of quantum physics, such as the violation of Bell's ...
Frank Schlawin +2 more
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Sensors, 2020 1-methylnaphthalene (1-MN) is a widely used laser-induced fluorescence (LIF) tracer for planar imaging of mixture formation and temperature distributions in internal combustion (IC) engines.
Peter Fendt +4 more
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CHIMIA, 2021 Understanding light-induced processes in biological and human-made molecular systems is one of the main goals of physical chemistry. It has been known for years that the photoinduced dynamics of atomic nuclei can be studied by looking at the vibrational ...
Tomislav Begušić, Jirí Vaníček
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Quantum Cascade Laser Absorption Spectroscopy as a Plasma Diagnostic Tool: An Overview
Sensors, 2010 The recent availability of thermoelectrically cooled pulsed and continuous wave quantum and inter-band cascade lasers in the mid-infrared spectral region has led to significant improvements and new developments in chemical sensing techniques using in ...
Jürgen Röpcke +5 more
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Tinaksite and Tokkoite: X-ray Powder Diffraction, Optical, and Vibrational Properties
Crystals, 2022 In this study, natural tinaksite (K2Ca2NaTi[Si7O18OH]O) and tokkoite (K2Ca4[Si7O18OH](OH,F)) collected in charoite rocks of the Murun alkaline massif (Siberia, Russia) were examined by X-ray diffraction and optical and vibrational spectroscopic methods ...
Ekaterina Kaneva, Roman Shendrik
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