Shore-based lidar for monitoring coastal sea water areas

Burikov, Sergey; Klimov, Denis; Litvinov, P. N.; Maslov, D. V.; Фадеев, В. В.

doi:10.1070/qe2001v031n08abeh002038

Cited by 5 publications

(3 citation statements)

References 4 publications

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“…The green spectral band was attributed to 1,4-dihydroxyanthraquinones [30], which are of microscopic fungi origin always presented in soils. These results clearly demonstrated that the developed LIDAR can detect different organic compounds in soils, sediment rock, natural water, including living microorganism cells, green leaves of plants and sea plankton [10,31,32]. Preliminary data on the analyzed fluorescence spectra of soil, seawater, vegetation and synthetic samples are summarized in Table 1.…”

Section: Resultsmentioning

confidence: 77%

Remote Laser Induced Fluorescence of Soils and Rocks

Lednev¹,

Бункин²,

Першин³

et al. 2021

Photonics

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The laser induced fluorescence spectroscopy was systematically utilized for remote sensing of different soils and rocks for the first time, to the best of our knowledge. Laser induced fluorescence spectroscopy measurements were carried out by the developed nanosecond LIDAR instrument with variable excitation wavelength (355, 532 and 1064 nm). LIDAR sensing of different Brazil soil samples have been carried out in order to construct a spectral database. The laser induced fluorescence spectra interpretation for different samples has been discussed in detail. The perspectives of LIDAR sensing of organic samples deposited at soils and rock have been discussed including future space exploration missions in the search for extraterrestrial life.

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Section: Resultsmentioning

confidence: 77%

Remote Laser Induced Fluorescence of Soils and Rocks

Lednev¹,

Бункин²,

Першин³

et al. 2021

Photonics

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“…Instability of the signals is mainly caused by the waves formed by wind on the water surface. It should be noted that waves, in addition to signal instability may significantly increase the sampling distance as proposed in [6]. At the moment when the oil sample was spilled the fluorescence signal increased, but this increase was comparable to that caused by waves.…”

Section: Fluorosensor Performance Resultsmentioning

confidence: 88%

Laser fluorosensor for oil spot detection

Karpicz¹,

Dementjev²,

Kuprionis³

et al. 2005

Lith. J. Phys.

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Oil and water fluorescence properties were studied under their excitation by 266 and 355 nm light, corresponding to the fourth and third harmonics of a Nd:YAG laser. The oil spill detection fluorosensor designed for onshore or shipboard installation is described and its test results are presented. The fluorosensor enables detection of several µm thick films of different oils and oil products from more than 50 m distance and 3 m height above water surface in the daytime.

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“…An importance to develop the powerful pulsed solid-state lasers with high spatial brightness is caused by many possibilities of its applications, for example, in the remote monitoring [1,2], the laser-induced breakdown spectroscopy [3,4], and the ultrahard material processing [5,6]. Use of diode pumping gives high laser efficiency, compactness, laser operation stability, and simplicity in exploitation.…”

Section: Introductionmentioning

confidence: 99%

High power Nd:YAG laser with self-pumped phase-conjugate loop cavity and repetitive pulsed diode-matrix side-pumping

Pogoda

Lebedeva

Yusupov

et al. 2013

XIX International Symposium on High-Power Laser Systems and Applications 2012

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The joule-range high-beam-quality Nd 3+ :YAG laser oscillation in the multiloop self-pumped phase-conjugate cavity without an output coupling mirror at four-wave mixing of intracavity beams directly in the 110-mm long Nd 3+ :YAG rod with 12.6 kW diode side-pumping is developed and studied. The oscillation efficiency of up to 18 % and average power of up to 22 W were achieved in the optimized geometry of the laser cavity at the 13.9 kW pumping with repetition rate of up to 20 Hz and pulse duration of up to 475 μs. The laser generated a single high-intensive 200-ns giant laser pulse (or series of such pulses with microsecond period at increased pumping) oscillated at self-Q-switch on gain gratings with relatively narrow linewidth of about 2 GHz followed by low-intensive free-running wideband lasing. We also realized a passive Q-switch by the F 2 -:LiF and Cr 4+ :YAG crystals with oscillation of pulse trains and also 30-ns single-pulse oscillation with an individual pulse energy of up to 60 mJ and peak power of up to 4 MW at narrowed laser spectra down to 1.7 GHz.

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Shore-based lidar for monitoring coastal sea water areas

Cited by 5 publications

References 4 publications

Remote Laser Induced Fluorescence of Soils and Rocks

Remote Laser Induced Fluorescence of Soils and Rocks

Laser fluorosensor for oil spot detection

High power Nd:YAG laser with self-pumped phase-conjugate loop cavity and repetitive pulsed diode-matrix side-pumping

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