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Article
Electric-Discharge KrCl Laser with High Pump Power
The results of experimental and theoretical studies of the operation of an electric-discharge KrCl laser (λ = 222 nm) at pump power densities of ~10 MW/cm3 are presented. The radiation energy obtained experimenta...
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Article
Estimation of Energy and Time Parameters of Laser Radiation for Efficient Excitation of Phosphorus Oxide Fluorescence
We present a mathematical model of the process of laser-induced fluorescence of phosphorus oxide (PO) molecules. Based on the model, the dependences of the fluorescence intensity of PO molecules on the energy ...
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Article
Experimental Study of the Dynamics of Laser Fragmentation of Nitrotoluene and Nitrobenzene Vapors
Results are presented of the experimental study of the dynamic characteristics of the laser fragmentation/laser-induced fluorescence (LF/LIF) process in nitrobenzene and para-nitrotoluene vapors under synchronize...
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Article
Estimation of the Limiting Sensitivity of Laser Fragmentation/Laser-Induced Fluorescence Technique for Detection of Nitrocompound Vapors in Atmosphere
The limiting sensitivity of a technique for detecting vapors of nitrocompounds in the atmosphere based on laser fragmentation/laser-induced fluorescence is estimated in calculations with the developed kinetic ...
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Article
Laser-induced Fluorescence of PO Photofragments of Organophosphates
The spectrum of phosphorus monoxide (PO) fluorescence is calculated. It is shown that the use of excitation radiation at wavelengths near the bandheads of the (P22 + Q12) and P12 branches of the A2Σ+ (v′ = 0) − X
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Article
Efficiency of Laser Excitation of PO Photofragments of Organophosphates
Results of calculation of the absorption spectrum of phosphorus oxide (PO) corresponding to the A2Σ+ (v′ = 0) − X 2Π (v′′ = 0) transition are presented. The calculation is performed taking into account the pertur...
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Article
Discharge KrF Laser with a High Specific Energy of Radiation
We report the results of experimental and numerical investigations of a discharge KrF laser with specific pump power of 3.5 and 7 MW/cm3; generation is obtained with specific radiation pulse energy of about 6 and...
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Article
Estimation of the Efficiency of Laser Excitation of Phosphorus Oxide Molecules
The vibrational and rotational terms of the \({{X}^{2}}\Pi \) and
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Article
Alignment Technique and Quality Check of the Primary Mirror of the Siberian Lidar Station
The techniques for alignment and quality checking of the primary 2.2-m diameter mirror of the Siberian lidar station (SLS) are suggested. The results of computer simulation of the field aberrations of the prim...
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Article
Experimental Study of the Dynamics of Laser Fragmentation of Nitrobenzene Vapors
The paper presents results of experimental study of the dynamics of laser-induced fragmentation of nitrobenzene molecules. It has been shown that when two laser pulses interacting with nitrocompound molecules ...
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Article
Influence of Substrate Material on the Sensitivity of the Raman Lidar Technique for Detecting Traces of High-Energy Materials
Experimental results on the remote detection of surface traces of some high-energy materials are presented. The detection was performed with the use of a Raman lidar based on a narrow-linewidth excimer KrF las...
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Article
Effectiveness of Combined Laser and Gas Chromatographic Remote Detection of Traces of Explosives
The results of remote detection of objects containing explosives with a lidar detector of traces of explosives in combination with a portable express gas chromatograph are presented. It is shown that the lidar...
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Article
A Multi-Aperture Transceiver System of a Lidar with Narrow Field of View and Minimal Dead Zone
Requirements are determined for the spontaneous Raman lidar transceiver system, designed for solving problems dealing with studying the atmospheric boundary layer and predicting dangerous smog situations. The ...
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Article
Numerical Method of Cavity Adjustment by the Output Beam Image
Results of numerical and experimental studies of the control of optical elements of a KrF laser cavity by use of the image processing method are presented. Different methods of beam image binarization for dete...
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Article
Technique for Increasing the Selectivity of the Method of Laser Fragmentation/Laser-Induced Fluorescence
A technique for increasing the selectivity of the method of detecting high-energy materials (HEMs) based on laser fragmentation of HEM molecules with subsequent laser excitation of fluorescence of the characte...
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Article
Increasing the Sensitivity of Lidar Systems Based on the LF/LIF Method
The results of studies on the development of laser sources in the UV and IR spectral ranges for the lidar systems operating on the basis of a method of laser fragmentation with subsequent laser-induced fluores...
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Article
Remote detection of traces of high-energy materials on an ideal substrate using the Raman effect
We present experimental results on the remote detection of surface traces of some high-energy materials using a Raman lidar designed on the basis of an excimer KrF laser with a narrow generation line and a mul...
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Article
Lidar Detection of Explosive Vapors in the Atmosphere
The paper presents results of studying the feasibility of remote detection of explosive vapors in the atmosphere based on the lidar principle using the method of laser fragmentation/laser-induced fluorescence....
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Article
Experimental estimation of Raman lidar sensitivity in the middle UV
The experimental results of remote detection of vapors of some atmospheric chemical compounds using a Raman lidar system with a narrow-line excimer KrF laser and a multichannel spectral analyzer, based on a di...
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Article
Narrow-band tunable laser system for a lidar facility
A unique ultraviolet laser system has been developed for a lidar intended to detect nitrogen oxide molecules in the atmosphere. The electric-discharge KrF laser system is capable of producing a highly coherent...
