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  1. No Access

    Article

    Selective laser spectroscopy of Mn4+-Mn4+ pair centers in SrTiO3 crystal

    Zero-phonon lines of a pair center of Mn4+ ions are observed in the luminescence and luminescence-excitation spectra of SrTiO3:Mn crystal. Based on the experimental data, the energy-level structure of the ground ...

    L. R. Gilyazov, M. V. Eremin, S. I. Nikitin, R. V. Yusupov… in Optics and Spectroscopy (2014)

  2. No Access

    Article

    Using a Heterodyne Detection Scheme in a Subcarrier Wave Quantum Communication System

    The single photon detectors currently used in quantum communication schemes impose considerable restrictions on signal registration and dark count rates, require cooling to low temperatures, and are relatively...

    K. S. Mel’nik, N. M. Arslanov, O. I. Bannik… in Bulletin of the Russian Academy of Science… (2018)

  3. No Access

    Article

    Extraction of a Seismic Signal of Hydraulic Fracturing Using Discrete Wavelet Transform

    A method for extracting a seismic signal occurring during hydraulic fracturing is considered. This method is based on the application of discrete wavelet transform analysis. Simulation experiments were carried...

    M. E. Sibgatullin, L. R. Gilyazov… in Chemistry and Technology of Fuels and Oils (2023)

  4. No Access

    Article

    Development of a Broadband Seismic Receiver Based on GS-ONE LF Geophone

    A schematic diagram of a seismic receiver based on a GS-ONE LF geophone is proposed and implemented. An electronic circuit for summing seismic signals from geophones is developed, allowing the signal-to-noise ...

    L. R. Gilyazov, M. E. Sibgatullin… in Chemistry and Technology of Fuels and Oils (2023)

  5. No Access

    Article

    Post-Processing of Random Number Generator in InGaAs Contact Photodiode Homodyne Circuit Based on Continuous Wavelet Transform to Improve NIST Longest Run Test Pass Rate

    Using a continuous wavelet transform, the parameters of the noise generated in a balanced laser radiation detector at the output of an optical power divider were studied. A procedure for mathematical signal pr...

    D. A. Mavkov, M. E. Sibgatullin, L. R. Gilyazov, N. M. Arslanov in Russian Microelectronics (2023)

  6. No Access

    Article

    Using Discrete Wavelet Analysis to Optimize a Random Number Generator Based on an InGaAs pi-n Photodiode in a Homodyne Scheme

    An approach is proposed for optimizing the operation of a random number generator based on discrete wavelet analysis. It is shown that controlling the contribution of the scale components of the wavelet transf...

    M. E. Sibgatullin, L. R. Gilyazov… in Bulletin of the Russian Academy of Science… (2023)

  7. No Access

    Article

    Photonic Quantum Interface between Subcarrier Wave and Polarization Encoding of Photonic Qubits

    We report a theoretical analysis of a photonic quantum interface, which makes it possible to deterministically convert photonic qubits from subcarrier wave to polarization encoding. The interface provides unam...

    K. S. Melnik, E. S. Moiseev, L. R. Gilyazov… in Bulletin of the Lebedev Physics Institute (2024)