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We considered the characteristics of modernized measurement complex of Siberian Lidar Station (SLS), as well as some other lidar installations, developed at V.E. Zuev Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences, in collaboration with Tomsk State University, and their capabilities for sensing the atmospheric parameters. The lidar measurements of the vertical profiles of temperature are presented and compared with balloon-sonde and satellite data. A lidar for measurements of the vertical ozone distribution in the upper troposphere–stratosphere is described. The reconstructed profiles of the vertical ozone distribution are presented. We give the results of test experiments on laser sensing of the atmospheric gas composition with the help of IR lasers, promising for gas analysis.

Using the method of optical breakdown clipping on Krypton Fluoride excimer laser, ASE (Amplified Spontaneous Emission) pulse compression technology was studied in this paper. And the liquid medium breakdown depth on the ASE pulse compression effect was analyzed. The initial ASE pulse width was 16.8 ns; the shortest 8.4 ns ASE pulse was obtained in the experiment. The auxiliary beam induced luminescence breakdown was used to study on the law of optical breakdown clipping, and the short 7.3 ns ASE pulse was got. These experimental results proved that the auxiliary beams are useful to accelerating the plasma generation rate and duration. The results ASE pulse compression can be controlled in some degree.

Preliminary test data for an original configuration of a multimedia metal vapor laser emitter are presented. The emitter is promising for many applications, in particular, for remote sensing of atmosphere parameters. The novelty of the approach is that two (strontium and copper bromide vapor) gas discharge active elements are placed into a common cavity and each of them is pumped separately from an independent power supply. This permits one to optimize them independently by excitation conditions and, consequently, makes it possible to timely regulate the total set of generation wavelengths and their relative distribution with respect to power in the output beam. This makes the described construction very attractive for a series of scientific and technological applications.

Results on modification of improved synthesis and growth technologies of doped GaSe crystals, design of characterization methods and results of investigation of physical properties, design of tunable mid-IR and wide spectral bandwidth THz parametric frequency converters, first results of its applications in applied spectroscopy are summarized.

We report on the phase-matched high harmonic generation from N₂ gas cell. By varying the laser focus position in the gas cell, we observe the harmonics emission in different position of gas cell. Our results suggest that this source is a potential source for studying ultrafast molecular dynamics

Laser action in gas mixtures of different gases with NF₃ and SF₆ pumped by a volume diffuse discharge formed in nonuniform electric field by run-away electrons (REP DD) is studied. Efficient lasing on HF(DF) and nitrogen molecules was demonstrated. Laser action on atomic transitions of Ne (λ = 585,3 nm, Ar (λ = 750,3 nm), F (λ = 712,8 и 731,1 nm), and on XeF* molecules (λ = 351 and 353 nm) was studied, as well. It was shown that the volume discharge initiated by run-away electrons (REP DD) in gas mixtures with SF₆ is a source for efficient excitation of gas lasers on HF, DF, и N₂ molecules.

The ASE (Amplified Spontaneous Emission) pulses, output of the transversely excited atmosphere pumped KrF excimer laser, was compressed experimental by the way of laser oscillation quenching. The effect of mirror position and diaphragm aperture on the pulses compression is discussed in this paper. The experimental results show that, when the angle of the mirror relative to the optical axis is 3.0 mrad and the diaphragm aperture is 4.0 mm, the pulse compression effect is best, and the ideal waveform can be obtain. For the original 12.5 ns pulse, output of the discharge pumped KrF excimer laser, when using the way of laser oscillation quenching to compressed, it can be got the best results of 5.1 ns.

Preliminarily results on the reaction mechanism of detonation of composite emulsion explosives sensitized by MgH₂, which simultaneously plays the role of an energetic material, are presented. Compared to emulsion explosives sensitized by glass microspheres, emulsion explosives sensitized by magnesium hydride have a different reaction mechanism of detonation. The shock wave overpressure, specific impulse, shock wave energy, and bubble energy are all greatly increased with the use of MgH₂, and it is noticeable that the shock wave overpressure and shock wave energy increase by 17% and 24%, respectively. In addition, emulsion explosives sensitized by MgH₂ improve significantly in terms of detonation velocity and brisance. These emulsion explosives also meet safety requirements.

This paper presents the results of a study of the formation of localized shear in M1 copper of two types: as-received and after preloading by a quasi-entropic compression wave. The experiments were performed with hat-shaped samples using the split Hopkinson bar method. For both types of copper, dynamic compression diagrams were obtained at strain rates of 2100–2500 s^–1. The copper structure was subjected to metallographic analysis, and the effect of preliminary shock deformation on the dynamic mechanical properties of the material was estimated. It is shown that preloaded higher-strength metals with a smaller degree of strain hardening are more prone to the formation of adiabatic shear bands.