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Просмотр по автору "Samartsev V."

Просмотр по автору "Samartsev V."

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  • Quantum theory of radiation-balanced laser 
    Petrushkin S.; Samartsev V. (2006)
    A quantum-mechanical description of a radiation-balanced solidstate laser is presented. This description can be used to investigate the effect of lattice phonons on the dynamic laser characteristics. © 2007 by Allerton Press, Inc.
  • Reverse optical transitional processes on crystal surfaces 
    Gadomskaya I.; Gadomsky O.; Samartsev V. (1984)
    The possibility of the coherent nonlinear optical process excitation on the surface of crystals with the help of resonant pulse fields is analysed. The reverse photon echo phenomenon is considered. © 1984.
  • Simulation of coherent responses of resonant media excited by a series of ultrashort laser pulses 
    Tiranov A.; Karimullin K.; Samartsev V. (2012)
    A technique for the numerical simulation of coherent optical responses of the photon echo type formed in resonance media with strong inhomogeneous broadening under the action of femtosecond laser pulses is developed. This ...
  • Spatial and spectral properties of a photon echo 
    Zuikov V.; Kalachev A.; Samartsev V.; Rebane A.; Wild U. (1998)
    Spatial and spectral regularities in the formation of photon echo signals are studied. The frequency shift of the signal of a primary photon echo with respect to the carrier frequency of excitation laser pulses that was ...
  • Specific features of local data erasure and laser cooling in van vleck paramagnetics 
    Kalachev A.; Samartsev V. (1997)
    Nonequilibrium population of hyperfine sublevels of the ground electronic state of rare-earth ions is theoretically investigated for Van Vleck paramagnetic crystals subject to optical excitation with laser pulses. We discuss ...
  • Stimulated photon echo with temporal data coding in the Hopfield-Little regime 
    Vorobieva V.; Kalachev A.; Samartsev V. (2009)
    A model of an optical neural network with associative memory using stimulated photon echo (SPE) with temporal data coding is presented. The electrical field's calculation of the SPE signals is carried out for case of ...
  • The Nutation Effect And Sit On The Exciton Levels 
    Samartsev V.; Sheibut U.; Ivanov U. (1976)
    The theory of the nutation effect and SIT on the exciton levels, where the polariton dispersion is taken into account, are considered. © 1976, Taylor & Francis Group, LLC. All rights reserved.
  • The peculiarities of accumulated long-lived photon echo in van vleck paramagnetics 
    Kalachev A.; Samartsev V. (1996)
    Theory of accumulated long-lived photon echo in Van Vleck paramagnetics is developed. From comparison with experimental data obtained in LaF 3 : Pr 3+ (the 3H 4- 3P 0 transition) the relaxation rates of population of the ...
  • Time-resolved photoinduced charge dynamics of Cd chalcogenide-based materials 
    Leontyev A.; Nurtdinova L.; Shmelev A.; Zharkov D.; Nikiforov V.; Lobkov V.; Samartsev V. (2019)
    © 2018 Astro Ltd. We have performed a comparative analysis of the photocharging dynamics of quantum dots (CdSe-CdS core-shell nanoparticles in toluene) and a bulk CdS single crystal by using time-resolved luminescence and ...
  • Transients in media with near dipole-dipole interatomic interaction 
    Khasanov O.; Rusetsky G.; Samartsev V.; Smirnova T.; Fedotova O. (2004)
    The effect that may be exerted by an interatomic near dipole-dipole interaction upon optical transient processes in dense resonance media is analyzed. The behavior of the macroscopic polarization after a one-pulse excitation ...
  • Ultrafast Below-Band-Gap Laser Pulse Induced Relaxations in CdS Crystal 
    Shmelev A.; Leontyev A.; Nikiforov V.; Ivanin K.; Lobkov V.; Khasanov O.; Samartsev V. (2015)
    © Published under licence by IOP Publishing Ltd. We report an experimental study of the intra- and interband transitions in bulk CdS crystal induced by a strong below-band-edge femtosecond laser pulse. An additional peak ...
  • Ultrafast spectroscopy of CdS/CdSe quantum dots 
    Shmelev A.; Leontyev A.; Zharkov D.; Nikiforov V.; Lobkov V.; Samartsev V. (2017)
    © 2017, Allerton Press, Inc. Results from the nonresonance spectroscopy of CdS/CdSe quantum dots (composites of CdSe–CdS nanoparticles (core–shell)) are presented. The nonlinear optical properties of CdS/CdSe QDs in PMMA ...
  • Weak magnetic field behavior of photon echo in a LuLiF4:Er 3+ crystal 
    Lisin V.; Samartsev V.; Shegeda A.; Zuikov V.; Rosencwage Y. (2007)
    We report the first observation and study of the photon echo in Er 3+:LuLiF4. The energy transition is 4 I 15/2 → 4 F 9/2 (λ = 6536 Å). The density of ErF3 is 0.025 wt %. The operation temperature is 1.9 K. Measurements ...

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