2304-9782, 2618-8686, 2405-7223 4 182 1 2013

RAR RUS 9-20 Shadrin Evgeniy shadr.solid@mail.ioffe.ru Ilinskiy Alexander ilinskiy@mail.ioffe.ru Herzen State Pedagogical University of Russia Castro Arata Rene recastro@mail.ru Nabiullina Lilia Peter the Great St. Petersburg Polytechnic University Pashkevich Marina marpash@yandex.ru Magnetooptical effects  in undoped bismuth silicate crystals The Faraday and the polar magnetooptical Kerr effects in undoped Bi12SiO20 (BSO) crystals have been investigated. The dependence of a turn angle of polarization plane on magnetic induction for both effects was established to be nonlinear. The results were interpreted within the framework of combined electromagnetogyration model. Electrogyration part of the contribution was due to the formation of the longitudinal internal electric field induced by optical spin orientation. It was shown that magnetism of nonshared electronic pairs of Bi–O hepthaedra made the contribution in the total gyration of BSO crystal. 537.632.3 sillenites faraday effect magnetooptical Kerr effect gyration https://physmath.spbstu.ru/article/2013.21.1/ 01shadrin_8_20.pdf

RAR RUS 21-30 Rodnyi Petr piotr_rodnyi@mail.ru Chernenko Kirill nuclearphys@yandex.ru Klimova Olga paniolia@list.ru Gorokhova Elena e.gorokhova@rambler.ru The annealing effect on green X-ray  luminescence of zinc oxide powders The annealing effects on X-ray luminescence of zinc oxide powders have been investigated. Annealing was performed in vacuum and atmosphere. Thereafter, the samples were annealed in Ar : H2 gas mixture. The luminescence bands located at 515 nm after vacuum annealing and at 525 nm after air annealing were detected in the samples. Annealing in hydrogenous ambience had no effect on samples annealed previously in the vacuum. Luminescence intensity of air-annealed powders decreased significantly after annealing in hydrogenous ambience. All samples had complex decay time curves with three exponential constants. 535.232.14 zinc oxide green luminescence annealing X-Ray luminescence https://physmath.spbstu.ru/article/2013.21.2/ 02rodnyj_21_30.pdf

RAR RUS 31-36 Kornyshov Grigory supergrigoir@gmail.com Sakharov Alexey val@beam.ioffe.rssi.ru Nikolaev Andrei Aen@mail.ioffe.ru Influence of aluminum content in blocking layer  on properties of green InGaAlN LEDs The influence of AlGaN blocking layer on properties of green InGaAlN LEDs has been studied. The variation in aluminum content was found to change both LEDs efficiency and emission maximum position. 621.315.592, 621.382 III-nitrides light-emitting diodes optical properties epitaxy https://physmath.spbstu.ru/article/2013.21.3/ 03kornyshov_31_36.pdf

RAR RUS 37-47 Rakcheeva L.P. lida@nanobio.spbstu.ru Serdobintsev Pavel serdobintsev@rambler.ru Belyaeva Antonina beliaeva@gmail.com Shevkunov Igor shevkunov_igor@mail.ru Pastor Alexander pastor273@gmail.com 0000-0003-0562-0156 Peter the Great St. Petersburg Polytechnic University Khodorkovskii Mikhail khodorkovskii@gmail.com The electronic structure of excited argon-xenon molecules in the spectral region near xenon excited  states The photoionization spectra of ArXe dimer molecules near the excited states Xe* 7p, 6d in the high-energy area 87500 – 90000 cm-1 close to the energy of ionization of molecules were recorded by the method of three-photon excitation of molecules followed by one-photon ionization. There are 12 states of Xe* in this area, two of these states are allowed at three-photon excitation. The spectrum recorded by monitoring the molecular ions ArXe+ has the complicated image. The dissociation limits of two vibrational systems were measured: ArXe*→Ar1S0+Хе*7р[5/2]2 и Ar1S0+Хе*6d[7/2]03. For these excited states the molecular constants and the potential curves were calculated. These data were obtained for the first time. 535.333; 544.174.2 resonance multiphoton ionization molecule ion excited state rare gas electronic state dissociation mass-spectroscopy laser excitation https://physmath.spbstu.ru/article/2013.21.4/ 04rakcheeva_37_47.pdf

RAR RUS 48-55 Agroskin Vladimir Bravy Boris bgbrav@icp.ac.ru Vasiliev German Kashtanov Sergei Makarov Evgeny makarov@icp.ac.ru Sotnichenko Sergey sasotnik@icp.ac.ru Chernyshev Yuri chern@icp.ac.ru A final DF-CО2 amplifier of the multi-terawatt picosecond 10 micrometer laser system The paper presents the results of measurements of the gain and the energy of the amplified spontaneous luminescence of pulsed chemical DF-CO2 amplifier at an active medium pressure up to 2.5 atm. The values obtained and the large amplifier aperture (100 mm) allow to use it as a final amplifier of the multiterawatt 10-µm picosecond laser system. 621.373.826 DF-CО2 laser linear gain coefficient amplified spontaneous luminescence https://physmath.spbstu.ru/article/2013.21.5/ 05agroskin_48_55.pdf

RAR RUS 56-65 Voschula Igor Dlugunovich Vyacheslav v.dlugunovich@dragon.bas-net.by Zhumar Andrei Backscattering of polarized laser radiation by thermalcontrol coatings and constructional materials The backscattering of spacecraft materials and coatings illuminated by linearly polarized radiation of He-Ne laser at a wavelength of 632.8 nm has been studied. Bistatic measurement scheme was used, i. e. the laser and a detector were placed stationary. Variation of the incidence angle was carried out by sample rotation. There was a good agreement between the results of measurements and calculations. 535.36:535.51 degree of polarization laser radiation bidirectional reflectance distribution function thermal control coating https://physmath.spbstu.ru/article/2013.21.6/ 06voshhula56_65.pdf

RAR RUS 66-71 Lebedeva Zhanna Shurakova Yulia inet-julia@yandex.ru Quality assurance of proton ophtalmology: selection of collimation and scattering systems This study covers basic requirements for scattering and collimation systems while creating a nozzle for treatment of malignant ocular tumors. The results of treatment simulations in Geant4 are represented. 621.384.663 proton ophtalmology passive scattering method scattering system final collimator GEANT4 https://physmath.spbstu.ru/article/2013.21.7/ 07lebedeva66_71.pdf

RAR RUS 72-82 Makovetskii Alexander maz226@ms.ire.rssi.ru Zamyatin Alexander Ivanov Gennadiy Shilov Igor Drawing of capillaries and optical fibersusing high-temperature furnace with nonuniform azimuthal profile of temperature field The effect of the nonuniform azimuthal profile of the temperature field in a high-temperature furnace on the cross-section ellipticity of the capillaries and optical fibers has been investigated experimentally. The control possibility for this ellipticity was demonstrated. 666.1.036.2 collapse of glass tube capillary drawing wall thickness inhomogeneity capillary ellipticity azimuthal profile high-temperature furnace https://physmath.spbstu.ru/article/2013.21.8/ 08makoveckij_72_82.pdf

RAR RUS 83-87 Lapshin Vladimir Pelli Alexander Applicability analysis of diffusion approach for calculation of radiativecharacteristics of the high pressure gas discharge An analysis of the diffusion approach applicability for the radiation transfer calculations in the high pressure gas discharge has been carried out. It was shown that the diffusion approximation led to asymptotically correct results for the cases of optically thin and optically thick plasma columns. In the case of intermediate values of optical thickness the distinction between exact and diffusion approaches did not exceed 20 %. 537.52 radiation transfer gas discharge diffusion approach modeling plasma radiation spectrum radiative plasma sources https://physmath.spbstu.ru/article/2013.21.9/ 09lapshin_83_87.pdf

RAR RUS 88-92 Golikov Yuri 0000-0003-3514-8577 Peter the Great St. Petersburg Polytechnic University Solovyev Konstantin k-solovyev@mail.ru

Russia, 195251, St.Petersburg, Polytechnicheskaya, 29

Analytical connection of ideal space-time focusing ion system elements A new approach to ideal ion optical system synthesis using analytical connection of ion optical elements is described. The method discussed prevents loss of ideal focusing in a place of elements junction. The theory described is used to build electrostatic ion trap. 537.534.3 ion optics electrostatic ion trap ideal space-time focusing https://physmath.spbstu.ru/article/2013.21.10/ 10solovev_88_92.pdf

RAR RUS 93-99 Kniazkov Anatoly akniazkov@mail.ru Kukurichkin Vladimir Temperature effects upon coherence of semiconductor lasers emission The paper presents the study of thermal effects upon a semiconductor laser emission coherence for red radiation range and a diode-pumped Nd laser operating on second harmonic of green radiation range for operating temperatures (20 – 40° C). The coherence of the radiation was estimated by morphological Euler numbers of the interference patterns. A strong dependence of the interference patterns contrast on the operating temperature of emitting lasers was detected. Recommendations were given. 535.41 semiconductor laser neodim laser coherence radiation morphological Euler number interference patterns thermal effects https://physmath.spbstu.ru/article/2013.21.11/ 11knjazkov_93_99.pdf

RAR RUS 100-104 Kniazkov Anatoly akniazkov@mail.ru The measurement of the induced birefringence of electrooptic materials through the modulation of light reflection coefficient The article analyzes the measurement results for electrooptic (EO) birefringence of materials by modulating the reflection coefficient of monochromatic light polarized linearly that incidents on the surface of the EO medium. The cases of the normal light incidence and those in the area of the Brewster angle were reviewed. The sensitivity of the method was evaluated. 53.082.53 measurements induced birefringence electrooptic medium reflection coefficient https://physmath.spbstu.ru/article/2013.21.12/ 12knjazkov_100_104.pdf

RAR RUS 101-111 Peter the Great St. Petersburg Polytechnic University Zhurikhina Valentina zhurikhina@mail.edu.ioffe.ru Sadrieva Zarina zarinasadrieva@mail.ru Formation of channel optical waveguides under the glass poling The physical model and numerical simulation of channel optical waveguides formation under the glass poling have been performed. The conditions of single-mode waveguide formation were found. 535 single-mode channel waveguides glass poling numerical modelling https://physmath.spbstu.ru/article/2013.21.13/ 13zhurihina_101_111.pdf

RAR RUS 112-116 Stepanova Tamara t_stepanova2005@mail.ru Karpenko Elena ele62461401@yandex.ru E-4237-2014 12784708700 0000-0001-9050-4453 Peter the Great St. Petersburg Polytechnic University Kapralova Victoria kapralova2006@yandex.ru

Russia, 195251, St.Petersburg, Polytechnicheskaya, 29

Dipole moments of N-methylpyrrolidone in liquid state and in dilute aqueous solution The study of temperature dependences of N-Methylpyrrolidone dipole moments (NMP) has been carried out in its liquid state and in dilute aqueous solutions. The dipole moment and the Kirkwood factor temperature dependences suggested the NMP to be weakly associated liquid. The NMP dipole moment in aqueous solutions calculated by Buckingham statistical theory of the dielectric polarization was 4.12 D at 25 deg.cent. indicating the absence of the expected polarization influence of the polar water molecules. 539.193/194; 544.163.2 dipole moment N-methylpyrrolidone dilute solution https://physmath.spbstu.ru/article/2013.21.14/ 14stepanova_112_116.pdf

RAR RUS 117-122 0000-0003-0309-5917 Peter the Great St. Petersburg Polytechnic University Berdnikov Yaroslav berdnikov@spbstu.ru Rebyakova Victoria victoria.rebyakova@gmail.com Spirin Denis ssdenis@mail.ru Background processes while monitoring coherentJ/ψ-mesons photoproduction events in ultraperipheral proton-proton collisions The contribution of two main background effects to the cross-section value of coherent J/ψ-meson photoproduction in ultraperipheral proton-proton collisions at Large Hadron Collider has been evaluated. 539.126 ultraperipheral collisions photoproduction J/Ψ-meson https://physmath.spbstu.ru/article/2013.21.15/ 15berdnikov117_122.pdf

RAR RUS 123-127 Peter the Great St. Petersburg Polytechnic University Berdnikov Alexander alexber@phmf.spbstu.ru

Russia, 195251, St.Petersburg, Polytechnicheskaya, 29

Golovin Alexey 0000-0003-3298-3702 Peter the Great St. Petersburg Polytechnic University Ivanishchev Dmitry ivanishchev_da@pnpi.nrcki.ru 0000-0002-3395-0454 Peter the Great St. Petersburg Polytechnic University Kotov Dmitry dmitriy.kotov@gmail.com Ryabov Victor Ryabov Yuri Nuclear modification factors for electrons from decays of particles containing heavy quarks The nuclear modification factors for electrons from semi-leptonic decays of particles containing heavy quarks are presented. The results obtained in the PHENIX experiment at RHIC in p + p and Au + Au collisions at sNN = 200 GeV. The comparison of the results with the calculations of the known theoretical models is shown. 539.125.17; 539.126.17 quark-gluon plasma meson heavy quarks analysis https://physmath.spbstu.ru/article/2013.21.16/ 16berdnikov123_127.pdf

RAR RUS 128-142 Zayats Oleg zay.oleg@gmail.com Analysis of piecewise linear stochastic systems in half-spaces by means of the Pugachev-Sveshnikov equation An analytic approach is presented to obtain a probability distribution function of the state-vector of piecewise linear systems which have two domains (half-spaces) of linearity. The approach is based on the use of the Pugachev – Sveshnikov equation for the characteristic function and its reduction to the parametric Riemann boundary value problem for half-planes. Crandall’s problem for anisotropic viscosity friction is solved as an example of application of the derived theory. The displacement of a body, placed on a randomly oscillating foundation, is explored. And the asymptotical behaviour of the mathematical expectation of this body’s displacement is obtained. 303.733.33 continuous Markov process Pugachev – Sveshnikov equation Riemann boundary value problem stochastic mechanics Crandall’s problem anisotropic viscous friction https://physmath.spbstu.ru/article/2013.21.17/ 17zajac_128_142.pdf

RAR RUS 143-153 Kozlov Vladimir Norm minimization operators for compact sets in Euclidean space Operators formulated are projection operators generalized and minimize the Euclidean space norm functional into a non-empty intersection of a linear manifold and a ball. Equivalent canonical forms, invariants and analytic representations of minimization and acceptable solutions operators are determined. The application of operators is illustrated through an objective analysis of sufficient conditions for asymptotic stability of nonlinear differential operators of closed locally optimal automatic control systems. 519,87:62 projection operators generalized norm compact sets linear manifold https://physmath.spbstu.ru/article/2013.21.18/ 18kozlov_143_153.pdf

RAR RUS 154-165 Charikov Yuri y.charikov@yandex.ru Shabalin Alexander TaoAstronomer@gmail.com Kudryavtsev Igor ig.kudryavtsev@gmail.com Hard X-rays in solar flaring loops from accelerated electron beams The energy, spatial and pitch angle distributions of the accelerated electrons in the solar magnetic loops are considered. Hard X-ray spectrum and polarization are calculated. It is shown that the hard X-ray source at the looptop can be formed even with the anisotropic injection away from the looptop. The polarization degree is –30% at the top of the magnetic loop. A comparative analysis of the results with different parameters of the source of accelerated electrons and magnetic field is also carried out. 523.985.3 SUN FLARE POLARIZATION FOKKER – PLANCK EQUATION HARD X-RAY MAGNETIC LOOPS https://physmath.spbstu.ru/article/2013.21.19/ 19charikov_154_165.pdf

REV RUS 166-169 Peter the Great St. Petersburg Polytechnic University Rybin Valery rybinvv@mail.com

Russia, 195251, St.Petersburg, Polytechnicheskaya, 29

Fundamental problems of intensive plastic deformation of crystalline solids This is a short introduction written by a supervisor of studies of the seminar (see the title). It substantiates an actuality and a good time for conducting the scientific forum. 669.15 seminar severe plastic deformation (SPD) crystalline solid https://physmath.spbstu.ru/article/2013.21.20/ 4-1(182)2013_166-169_20.pdf

RAR RUS 170-181 Degtyarev M.V. Chashchukhina T.I. Voronova L.M. Structure evolution of metals and alloys under deformation in Bridgeman anvils Stage development of the structure has been established in the study of metals and alloys, in which mainly one of the following structure-forming processes develops upon deformation in Bridgman anvils: work hardening, dynamic recovery, pressure-induced phase transformation, twinning, and dynamic recrystallization. The influence of these processes on the formation of a homogeneous submicrocrystalline structure and the refinement of its elements has been shown. 539.374:539.25:539.4.015 severe plastic deformation high pressure structure work hardening twinning pressure-induced phase transformation dynamic recovery dynamic recrystallization https://physmath.spbstu.ru/article/2013.21.21/ 4-1(182)2013_170-181_21.pdf

RAR RUS 182-189 Klevtsov G. Ganeev A.V. Semyonova I. Valiyev R.Z. Shock deformation of ultrafine-grained materials under intensive plastic deformation Regularities of impact fracture of materials with BCC lattice structure (steel 10), FCC lattice structure (aluminum alloy AK4-1) and hexagonal lattice structure (titan Grade 4) in the initial state and after ECAP in sub microcrystal state have been established. Impact tests were conducted in the wide temperature interval.. It was shown, the crystall lattice tipe of ultra grained materials determine the character of the impact strength temperature dependence and also fracture mechanism. 680.186.4+539.23+539.216.1:531 strength fracture mechanism impact strength structure equal canal angular pressing (ECAP) sub microcrystal state https://physmath.spbstu.ru/article/2013.21.22/ 4-1(182)2013_182-189_22.pdf

RAR RUS 190-203 Mulyukov R. Imayev R.M. Nazarov A. Principles of fabrication of ultrafine-grained materials The paper is devoted to principles of fabrication of homogeneous ultrafine-grained structures in bulk and sheet products by means of multiple isothermal forging, equal channel angular pressing and warm rolling techniques. 669.15 ultrafine-grained structure multiple isothermal forging warm rolling superplastic forming diffusion bonding https://physmath.spbstu.ru/article/2013.21.23/ 4-1(182)2013_190-203_23.pdf

RAR RUS 204-212 Utyashev F.Z. Intensive plastic deformation and structure formation of metal The influence of metal flow kinematics under severe plastic deformation on deformation quantity and on structure modification peculiarities has been considered through the equal canal angle pressing. The functions of shearing and bending in ultrafine grained structure formation were demonstrated and parts of those components in the general deformation were defined. 559.3 point mass trajectory and degree of deformation rotational and bending components nonmonotonic deformation distortion streaky structure microstrips https://physmath.spbstu.ru/article/2013.21.24/ 4-1(182)2013_204-212_24.pdf

RAR RUS 213-221 Brodova I Petrova A. Structure formation in aluminum alloys under explosive deformation Some features of ultrafine grained (UFG) structures formation in aluminum alloys with various energy of stacking imperfections, under dynamic equal-angular pressing (DCAP) at the strain rate of 104 – 105 s–1 have been considered. Results of investigation of thermodynamical behavior of UFG alloys AMts and V95 during dynamic compression tests using Hopkinson – Kolsky bar were reported. 539.378.6,539.214.9 fragmentation dynamic recrystallization aluminum alloy severe plastic deformation https://physmath.spbstu.ru/article/2013.21.25/ 4-1(182)2013_213-221_25.pdf