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  1. No Access

    Article

    Measuring Geometric Parameters of a High-Power Infrared Laser Beam near the Focus for Applications in a Laser-Plasma Short-Wave Radiation Source

    Measurements of geometric parameters of a high-power infrared laser beam have been realized by three methods. The obtained results are in a satisfactory agreement with each other. When focusing the beam with w...

    A. V. Belashov, P. S. Butorin, Yu. M. Zadiranov, S. G. Kalmykov… in Optics and Spectroscopy (2020)

  2. No Access

    Article

    Observation of Anisotropic Relaxation in Biological Molecules with Subpicosecond Temporal Resolution

    A new pump–probe technique has been developed for investigation of anisotropic relaxation and energy transfer processes in excited states of polyatomic molecules excited by femtosecond laser pulses. The propos...

    I. A. Gorbunova, M. E. Sasin, O. S. Vasyutinskii in Technical Physics Letters (2020)

  3. No Access

    Article

    Polarized Fluorescence in NADH Two-Photon Excited by Femtosecond Laser Pulses in the Wavelength Range of 720–780 nm

    The decay of polarized fluorescence in coenzyme NADH in aqueous-methanol solution under two-photon excitation by femtosecond laser pulses within the spectral range of 720–780 nm has been studied. Molecular flu...

    M. E. Sasin, I. A. Gorbunova, N. O. Bezverkhnii… in Technical Physics Letters (2019)

  4. Article

    Erratum to: Analysis of the Purcell Effect in the Waveguide Mode by S-Quantization

    10.1134/S0030400X17050095

    K. A. Ivanov, A. R. Gubaidullin, K. M. Morozov, M. E. Sasin… in Optics and Spectroscopy (2019)

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  5. No Access

    Article

    A New Method of Suppressing Peripheral Absorption in a Laser-Plasma Short-Wave Radiation Source with a Xe Gas-Jet Target

    A more than tenfold increase in the intensity of EUV radiation from a laser-produced plasma source is observed experimentally under the illumination of a Xe gas-jet target with a wide laser beam covering its d...

    P. S. Butorin, S. G. Kalmykov, M. E. Sasin in Technical Physics Letters (2018)

  6. No Access

    Article

    Polarized Fluorescence in Tryptophan Excited by Two-Photon Femtosecond Laser Pulses

    The decay of polarized fluorescence of tryptophan in water-propylene glycol solution two-photon excited by femtosecond laser pulses was explored. Linearly and circularly polarized light in the wavelength band ...

    M. E. Sasin, A. G. Smolin, O. S. Vasyutinskii in Optics and Spectroscopy (2018)

  7. No Access

    Article

    Absolutely Calibrated Spectrally Resolved Measurements of Xe Laser Plasma Radiation Intensity in the EUV Range

    With the aid of Mo/Be and Si/Mo interference mirrors, measurements of radiation intensity from laser plasma with Xe gas-jet target have been realized within a wavelength interval of 11–14 nm with a spectral re...

    P. S. Butorin, Yu. M. Zadiranov, S. Yu. Zuev, S. G. Kalmykov… in Technical Physics (2018)

  8. No Access

    Article

    Polarized Fluorescence in Indole under Two-Photon Excitation by Femtosecond Laser Pulses

    We have analyzed the decay of fluorescence intensity in indole dissolved in propylene glycol under two-photon excitation by linearly and circularly polarized femtosecond laser pulses in the wavelength range 47...

    M. E. Sasin, V. I. Tushkanov, A. G. Smolin, P. S. Shternin… in Technical Physics (2018)

  9. No Access

    Article

    Features of experimental spectra of the laser plasma with a dense xenon gas-jet target in the extreme ultraviolet range

    Emission spectra in the wavelength range of 5–25 nm of the laser plasma produced using a gas jet of Xe and a mixture of Xe + Ar with an atomic density of up to 7 × 1018 cm–3 are described. There are no discrete s...

    V. P. Belik, S. G. Kalmykov, A. M. Mozharov, M. V. Petrenko… in Technical Physics Letters (2017)

  10. No Access

    Article

    Fluorescence anisotropy of indole molecules under two-photon excitation in the spectral range of 485–510 nm

    Decay of polarized fluorescence in indole dissolved in propylene glycol under two-photon excitation by femtosecond laser pulses in the wavelength range of 485–510 nm has been studied. It is shown that under th...

    M. E. Sasin, V. I. Tushkanov, A. G. Smolin, O. S. Vasyutinskii in Optics and Spectroscopy (2017)

  11. Article

    Open Access

    Enhancement of spontaneous emission in Tamm plasmon structures

    It was theoretically and experimentally demonstrated that in metal/semiconductor Tamm plasmon structures the probability of spontaneous emission can be increased despite losses in metal, and theoretical analys...

    A. R. Gubaydullin, C. Symonds, J. Bellessa, K. A. Ivanov… in Scientific Reports (2017)

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  12. No Access

    Article

    Effect of a Coulomb well in (In, Ga)As/GaAs quantum wells

    Magnetooptical investigation of exciton transitions in high-quality quantum wells of an (In, Ga)As/GaAs heterosystem has been carried out. Investigation of transmission of free-hanging samples detached from th...

    R. P. Seisyan, A. V. Kavokin, Kh. Moumanis, M. E. Sasin in Physics of the Solid State (2017)

  13. No Access

    Article

    Analysis of the Purcell effect in the waveguide mode by S-quantization

    A method for calculating the spontaneous-emission probability for arbitrary layered structures in the waveguide mode has been developed based on the scattering matrix formalism. The results of calculating the ...

    K. A. Ivanov, A. R. Gubaidullin, K. M. Morozov, M. E. Sasin… in Optics and Spectroscopy (2017)

  14. No Access

    Article

    Absorption of the laser radiation by the laser plasma with gas microjet targets

    An upper limit of absorption of the laser radiation in the plasma produced in a gas jet Xe target with the average density of (3–6) × 1018 cm–3 and the effective diameter of 0.7 mm is found. It is equal to ≈50% a...

    D. A. Borisevichus, V. V. Zabrodskii, S. G. Kalmykov… in Technical Physics Letters (2017)

  15. No Access

    Article

    Computational simulation of laser plasma emission with shock-wave-affected density distribution in the gas-jet target

    Based on the results of numerical fluid dynamics simulation, an imitation parameter has been constructed which simulates the observed intensity of the laser plasma emission in a short-wave range. Within the co...

    A. V. Garbaruk, M. S. Gritskevich, S. G. Kalmykov, M. E. Sasin in Technical Physics Letters (2016)

  16. No Access

    Article

    Cylindrical multilayer metal–dielectric structures

    A method of creating a cylindrical structures consisting of thin metallic layer and dielectric multilayer Bragg reflector is described. Formation of the structures is observed experimentally as a result of sep...

    M. E. Sasin, N. D. Il’inskaya, Yu. M. Zadiranov… in Technical Physics Letters (2015)

  17. No Access

    Article

    Experimental Demonstration of Reduced Light Absorption by Intracavity Metallic Layers in Tamm Plasmon-based Microcavity

    We demonstrate experimentally a microcavity based on SiO2/TiO2 with two gold layers directly attached to the central base of the microcavity. The design of optical modes based on the peculiarities of Tamm plasmon...

    M. A. Kaliteevski, A. A. Lazarenko, N. D. Il’inskaya, Yu. M. Zadiranov… in Plasmonics (2015)

  18. No Access

    Article

    Shock waves in gas-jet target of a laser-produced-plasma short-wave-radiation source with two-pulse plasma excitation

    Previous investigations of the laser plasma at two-pulse mode of its generation revealed long-living perturbations of the gas-jet target by the first pulse, leading to significant modulations of the plasma rad...

    A. V. Garbaruk, M. S. Gritskevich, S. G. Kalmykov… in Technical Physics Letters (2014)

  19. No Access

    Article

    The effect of a UV preionization pulse on short-wave radiation output from a laser-produced-plasma source with a Xe gas-jet target

    Experiments aimed to raise the emissivity of a laser-produced plasma source with a Xe gas target in the far-UV spectral range are described. In these experiments, the main pulse of the IR Nd:YAG laser was prec...

    V. V. Zabrodskii, Yu. M. Zadiranov, S. G. Kalmykov… in Technical Physics Letters (2014)

  20. No Access

    Article

    Start-phase ionization dynamics in the laser plasma at low gas target densities

    In Xe laser-produced-plasma sources of short-wave radiation, the laser-energy-to-EUV conversion efficiency (CE) proves substantially less than theoretical expectations. In the present work, a calculated estima...

    V. P. Belik, R. A. Demidov, S. G. Kalmykov, A. M. Mozharov… in Technical Physics (2013)

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