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  1. No Access

    Article

    A Compact Second-Harmonic Generator for Tasks of Precision Spectroscopy Within the Range of 240–600 nm

    We develop a universal design of a second-harmonic generator enabling a high-efficiency conversion of the CW laser radiation to a range of 240–600 nm. The distinctive features of the generator are its compact ...

    T. V. Shpakovsky, I. V. Zalivako, I. A. Semerikov… in Journal of Russian Laser Research (2016)

  2. No Access

    Article

    EIT Ground State Cooling Scheme of 171Yb+ Based on the 2S1/2→2P1/2 Cooling Transition

    We propose a method for EIT ground state cooling of 171Yb+ ion, which involves three light fields with detuning on a MHz scale. The steady-state mean vibrational quantum number is calculated to be less than 0.005...

    I. A. Semerikov, I. V. Zalivako, A. S. Borisenko… in Journal of Russian Laser Research (2018)

  3. No Access

    Article

    Compact Transportable Optical Standard Based on a Single 171Yb+ Ion (“YBIS” Project)

    The schematic diagram of the compact transportable optical frequency standard based on the quadrupole transition in a single 171Yb+ ion with a relative instability at the levelx of 5 · 10−16, less than 1m3 in vol...

    I. A. Semerikov, K. Yu. Khabarova… in Bulletin of the Lebedev Physics Institute (2018)

  4. No Access

    Article

    Optimization of Raman Cooling of 25Mg+ Ion to Ground Vibrational State in Linear Paul Trap

    The sideband cooling method and its implementation on the Raman transition of 25Mg+ is presented. The process is numerically simulated under the conditions of experiments at the Lebedev Physical Institute. Laser ...

    P. L. Sidorov, K. Yu. Khabarova… in Bulletin of the Lebedev Physics Institute (2019)

  5. No Access

    Article

    Three-Dimensional Paul Trap with High Secular Frequency for Compact Optical Clock

    The Paul ion trap is developed for the use in a compact frequency standard based on a single ytterbium ion. The design features are the use of atomic ovens for compensating for parasitic electric fields and go...

    I. A. Semerikov, I. V. Zalivako… in Bulletin of the Lebedev Physics Institute (2019)

  6. No Access

    Article

    Optimization of the Normal Mode Spectrum of Linear Ion Crystals in Paul Traps for EIT Cooling Using an Optical Lattice

    Ions in radio-frequency traps are widely used in various fields of applied and fundamental physics, such as metrology and quantum computing. One of the important tasks required for modern experiments is deep c...

    L. A. Akopyan, I. V. Zalivako, K. E. Lakhmanskiy, K. Yu. Khabarova… in JETP Letters (2020)

  7. No Access

    Article

    Linear Paul Trap for Quantum Logic Experiments

    The design of a linear ion Paul trap for quantum-logical operations on ultracold ions with high reliability is developed. The general requirements for the trap are presented, its parameters are optimized, and ...

    I. A. Semerikov, I. V. Zalivako… in Bulletin of the Lebedev Physics Institute (2020)

  8. No Access

    Article

    Experimental Study of the Optical Qubit on the 435-nm Quadrupole Transition in the 171Yb+ Ion

    Ultracold ions provide one of the most promising platforms for quantum computing and make it possible to reach record coherence times, the fidelity of preparation and readout operations, and single- and two-qu...

    I. V. Zalivako, I. A. Semerikov, A. S. Borisenko, M. D. Aksenov… in JETP Letters (2021)

  9. No Access

    Article

    Comparison of Three Ultrastable Lasers with a Femtosecond Frequency Comb

    The comparison of optical oscillators is used both to determine their spectral characteristics and to perform fundamental research. To describe each individual laser system, it is necessary to compare at least...

    K. S. Kudeyarov, A. A. Golovizin, A. S. Borisenko, N. O. Zhadnov… in JETP Letters (2021)

  10. No Access

    Article

    Optimization of the Readout Fidelity of the Quantum State of an Optical Qubit in the 171Yb+ Ion

    A scheme based on a laser cooling system has been proposed to detect the state of an optical qubit in the 171Yb+ ion. Analytical expressions have been derived for the readout fidelity including the dark photon co...

    N. V. Semenin, A. S. Borisenko, I. V. Zalivako, I. A. Semerikov… in JETP Letters (2021)

  11. Article

    Open Access

    Determination of the Heating Rate and Temperature of an Ion Chain in a Linear Paul Trap by the Dephasing of Rabi Oscillations

    The optimization of the parameters of laser cooling and the investigation of the heating rate in ion traps require the measurement of the temperature of ion chains for which the Lamb–Dicke regime is satisfied....

    N. V. Semenin, A. S. Borisenko, I. V. Zalivako, I. A. Semerikov… in JETP Letters (2022)

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  12. Article

    Open Access

    Erratum to: Several Articles in JETP Letters

    An Erratum to this paper has been published: https://doi.org/10.1134/S0021364022390023

    N. V. Semenin, A. S. Borisenko, I. V. Zalivako, I. A. Semerikov… in JETP Letters (2022)

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