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Laser Gas-Analyser for Monitoring a Source of Gas Pollution
Engineering Education # 10, October 2015
DOI: 10.7463/1015.0813348
pp. 221-234
Field Measuring Statistical Properties of Atmospheric Aerosol Inhomogenuity in Optical Spectral Band
Radiooptics # 05, September 2015
DOI: 10.7463/rdopt.0515.0793200
pp. 115-127
Laser Meter of Atmospheric Inhomogenuity Properties in UV Spectral Band
Radiooptics # 02, March 2015
DOI: 10.7463/rdopt.0215.0782060
pp. 32-46
Experimentally Studied Laser Fluorescence Method for Remote Sensing of Plant Stress Situation Induced by Improper Plants Watering
Engineering Education # 04, April 2014
DOI: 10.7463/0414.0707937
The paper concerns a laser fluorescence method for vegetation monitoring. It presents the experimental study results of laser-induced fluorescence spectra of plants in stress situations caused by improper watering. It is shown that at 532 nm wavelength of fluorescence excitation a stress factor impact may cause both a magnification of fluorescent signal and a deformation of fluorescence spectrum profile.  An identifying factor to characterize deformation of laser-induced fluorescence spectrum profile can be a relationship of fluorescence intensities at two wavelengths, i.e. 685 and 740 nm. Measurement of fluorescent signal intensity and fluorescence spectrum profile can be a basis of the laser fluorescence method to detect the plant stress situations.
Experimental studies of laser fluorescence method for remote control of plant stress situation induced by soil pollution
Engineering Education # 05, May 2013
DOI: 10.7463/0513.0565060
The article describes an experimental setup for studying the laser fluorescence method for control of stress situations for plants. Fluorescence spectra of lawn grass are presented in normal and various stress conditions during fluorescence excitation at the wavelength of 532 nm induced by anthropogenic soil pollution. It is shown that influence of stress factors induced by soil pollution on plants transforms the fluorescence spectrum significantly; these results could be used as a basis for a new laser method for remote control of plants’ condition.
Method of classification of oil slicks on the earth surface, based on detection of fluorescent radiation in five narrow spectral ranges
Engineering Education # 03, March 2013
DOI: 10.7463/0313.0539554
The article deals with classification of oil slicks on the earth surface. The authors provide experimentally obtained fluorescence spectra of pure oil and petroleum products; of various earth surfaces that are not polluted with oil; of oil and petroleum products spilled on various earth surfaces. It is shown that the use of the method based on detection of fluorescent radiation in five narrow spectral ranges allows to detect and classify oil slicks on the earth surface with probability of correct detection and correct classification close to one.
Laser method of determining thickness of gold nanofilms on a quartz substrate, based on measurement of the transmittance
Engineering Education # 12, December 2012
DOI: 10.7463/1212.0507361
The article covers a laser method of measuring thickness of thin metal films on a transparent insulating substrate, based on the measurement of transmittance of a four-layer system "air (vacuum) - metal film - insulating base - air (vacuum)." Mathematical modeling results show that when measuring transmittance of a four-layer system "air (vacuum) - metal film - insulating base - air (vacuum)" at the wavelength of 515 nm, thickness determination of gold nanofilms on a quartz substrate is possible to a precision of  not more than 2% in the film thickness range  of 5 – 70 nm.
Experimental studies of laser fluorescence method for remote sensing of plants in stressful situations due to mechanical injuries
Engineering Education # 11, November 2012
DOI: 10.7463/1112.0480063
Experimental setup for studying the condition of plants by laser fluorescence method is described in this article. Fluorescence spectra of lawn grass in normal and stressful situations is also presented. It is shown that influence of stress factor on plants could lead to increase in fluorescent signal.
77-30569/326698 Laser reflectometry method of measurement of thickness of gold nanofilms on quartz substrate
Engineering Education # 03, March 2012
 In this paper the authors consider a laser reflectometric method of measurement of thickness of metallic films on dielectric substratewas. Optimal wavelengths for measuring thickness of gold nanofilms on quartz substrate were determined; error estimation for determining film thickness from laser reflectometry measurements was obtained. Mathematical simulation shows that the method allows to measure a gold nanofilm with thickness from 1 nm to 5 nm using wavelength 1310 or 1550 nm with mean error ~ 0,15 % and with thickness from 5 nm to 50 nm using wavelength 515 nm with mean error ~ 0,25 % and the relative root-mean-square value of measurement noise 1 %.
77-30569/326277 Hierarchical method of classification of oil pollution at earth's surface based on detection of fluorescence radiation within four narrow spectral bands
Engineering Education # 02, February 2012
Laser monitoring problem of oil pollution at earth's surfaces was considered in this paper. It was shown that use of laser method based on detection of fluorescence radiation within four narrow spectral bands and hierarchical method of classification, allowed to classify oil pollution at earth's surfaces with a probability of correct classification close to one.
77-30569/256187 Experimental research of fluorescent spectrums of natural formations and oil pollution
Engineering Education # 11, November 2011
Article is devoted to experimental research of laser induced fluorescent spectrums of oil pollution on the earth’s surface. It was shown, that fluorescent spectrums of natural formations (earth’s underlying surfaces) and oil pollution had their own features which can be used to control oil pollution on the earth’s surface both right after spillage and at least a day after.
77-30569/233673 Laser method of measurement of thickness and refraction index of a nanofilm on a substrate based on determination of first-order derivative of reflection coefficient
Engineering Education # 10, October 2011
This article considers laser method of measurement of thickness and refraction index of a nanofilm on substrate. It is shown that the method based on determination of the first-order derivative of reflection coefficient allows to measure (with very few measurement errors) thickness and refraction index of a film at a measurement error of determination of reflection coefficient and first-order derivative of reflection coefficient by ~ 0,3 % in a wide range of refraction index (~ 3…7 and more) and thickness (~ 10…100 nm and more).  
 
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