DOI: 10.1016/j.optcom.2022.128914 Corpus ID: 251890663; A portable UAV-based laser-induced fluorescence lidar system for oil pollution and aquatic environment monitoring @article{Sun2022APU, title={A portable UAV-based laser-induced fluorescence lidar system for oil pollution and aquatic environment monitoring}, author={Lanjun Sun and Yanchao Zhang and Chensui Ouyang and Songlin Yin and Xiuyun
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Laser-Induced Fluorescence (LIF) The interaction of a laser beam with an atom, ion or molecule may results in excitation to a higher quantum state. A process of excitation is more likely to occur when the laser is tuned to the energy difference between this original lower state and an upper (excited) state. Such an event is accompanied by
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In a Laser Induced Fluorescence (LIF) approach a laser is employed as the excitation source. The laser provides a more spectrally intense and selective excitation with a more defined and narrower spectral background level. The laser spectroscopy capability can be tailored with the application to provide enhanced accuracy and repeatability in
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Laser induced fluorescence experiment Posted on 29.10. (01.07. ) by George Fomitchev In the experiment, we are using 3 types of lasers: red 650 nm, green 532 nm, blue 450 nm. Here we used various concentrations of chlorophyll and fluorescein and olive oil as fluorescence liquids.
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Significant resonance-enhanced multiphoton ionization and amplified spontaneous emission are presented in two-photon excitation schemes. Two-photon laser-induced fluorescence is applied to ground-state atomic sodium spatial distributions in microwave-coupled solid propellant flames. Keywords Fluorescence, Laser Diagnostics, Sodium, Two Photon URI
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Laser induced fluorescence spectroscopy in the ultraviolet regime has been used for the detection of biochemical through a fiber coupled CCD detector from a distance of 2 m. The effect of concentration and laser excitation energy on the fluorescence spectra of nicotinamide adenine dinucleotide (NADH
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My Life with LIF: A Personal Account of Developing Laser-Induced Fluorescence Richard N. Zare Annual Review of Analytical Chemistry Effects of Saturation on Laser-Induced Fluorescence Measurements of Population and Polarization R Altkorn, and and R N Zare
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30/05/ · Laser-induced fluorescence (LIF) is an interesting combination of absorption and emission spectroscopy. It is naturally more complicated than either of these methods alone, both experimentally and theoretically. In return, it offers higher sensitivity compared to single-pass absorption measurements, good spatial resolution given by intersection
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Laser-induced fluorescence (LIF) spectroscopy is of great importance for environmental monitoring. Besides outstanding sensitivity and good selectivity, particular advantages of the LIF technique include the capabilities for in situ analysis and remote sensing. The
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Laser Induced Fluorescence (LIF) is an optical spectroscopic technique where a sample is excited with a laser, and the fluorescence emitted by the sample is subsequently captured by a photodetector. LIF can be understood as a class of fluorescence spectroscopy where the usual lamp excitation is replaced by a laser source.
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Laser-induced fluorescence detection is the most frequently applied detection technique on lab-on-a-chip devices. As most (bio)molecules of interest are not fluorescent, labeling is required
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Laser-induced fluorescence (LIF) of a perylene-doped model oil was measured from aluminum oxide, quartz sand and soil surfaces over a period of 72 h. The long-term signal decrease was strongest in the soil which is possibly related to the incorporation of perylene into the soil matrix and to the formation of non-fluorescent bound residues.
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The High-Tech Group makes full use of its global network in the field of advanced technologies to offer top of the line electronic device systems, scientific and medical systems, and industrial and IT systems to become the world's number one
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Laser-Induced Fluorescence (LIF) Fluorescent dyes (molecules) can absorb light at one frequency and subsequently re-emit (fluoresce) light at a different frequency. In experiments, the dyes are excited by laser light whose frequency closely matches the excitation frequency of the dye. For
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Laser-induced fluorescence (LIF) is an interesting combination of absorption and emission spectroscopy. It is naturally more complicated than either of these methods alone, both experimentally and theoretically.
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Planar laser-induced fluorescence (PLIF) is an optical diagnostic technique widely used for flow visualization and quantitative measurements. PLIF has been shown to be used for velocity, concentration, temperature and pressure measurements. Working. A PLIF setup consists of a source of light (usually a
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Laser-Induced Fluorescence (LIF) Fluorescent dyes (molecules) can absorb light at one frequency and subsequently re-emit (fluoresce) light at a different frequency. In experiments, the dyes are excited by laser light whose frequency closely matches the excitation frequency of
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4-BPA is a phenoxyacetic acid, and a variety of analytical methods for phenoxyacetic acid detection have been developed, including capillary electrophoresis with laser-induced fluorescence , ultra-high liquid chromatography-mass spectrometry , headspace gas chromatography high-performance liquid chromatography and electrochemical methods [11,12
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A pulsed, tunable dye laser is used to obtain either the excitation spectrum for the A 2Πi-X 2Σ+ (0,0) band of CO+, or the time resolved fluorescence from individual rotational levels of the upper state for this transition. The ions are formed by reacting CO with helium metastable atoms produced in a dc discharge. Although the rotational structure of the A 2Πi (v = 0) state is well known
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Laser induced fluorescence (LIF) is a very sensitive technique for the species-selective spatially resolved detection of ground state atoms, which are the most populated state in a low temperature plasma. LIF uses a single photon per excitation of the probed atom or molecule.
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The laser-induced fluorescence was collected by a lens system perpendicular to both the excitation laser beam and the jet expansion and detected by a photomultiplier tube (PMT). In the DF experiment, the fluorescence is focused into and dispersed by a monochromator, and detected by an intensified charge-coupled device (CCD) camera.
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