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Пальчиков, Виталий Геннадьевич

Организационные подразделения

Организационная единица

Институт лазерных и плазменных технологий

Стратегическая цель Института ЛаПлаз – стать ведущей научной школой и ядром развития инноваций по лазерным, плазменным, радиационным и ускорительным технологиям, с уникальными образовательными программами, востребованными на российском и мировом рынке образовательных услуг.

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Пальчиков

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Виталий Геннадьевич

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Теперь показываю 1 - 10 из 14

Только метаданные
Miniature quantum frequency standard based on the phenomenon of coherent population trapping in vapours of Rb-87 atoms
(2020) Skvortsov, M. N.; Ignatovich, S. M.; Vishnyakov, V. I.; Kvashnin, N. L.; Pal'chikov, V. G.; Пальчиков, Виталий Геннадьевич
We report the results of the development and production of a quantum frequency standard (QPS) based on the coherent population trapping (CPT) resonance observed on the D-1 absorption line of Rb-87 atoms. The effect of various physical factors on the QFS frequency is studied, and the optimal physical parameters of the device to attain the best frequency stability are determined. The measured relative frequency instability (Allan deviation) is similar to 9 x 10(-12) for the averaging time of 1 s, 3 x 10(-13) for 1000 s, and 1.5 x 10(-12) for 24 hours. For a volume of 60 cm(3), the power consumption of the entire device is 300 mW. The designed QFS can be used in a new-generation satellite navigation systems with increased accuracy and reliability, as well as for solving a number of other problems of science and technology.
Только метаданные
Lattice light shift in strontium optical clock
(2020) Belotelov, G. S.; Ovsiannikov, V. D.; Sutyrin, D. V.; Gribov, A. Y.; Pal'chikov, V. G.; Пальчиков, Виталий Геннадьевич
Results of theoretical evaluations of uncertainties arising from the atom-lattice interaction effects on the clock frequency are presented for Sr atoms. Possibilities for simultaneous tuning of optical lattice frequency and intensity parameters are discussed aiming at minimizing uncertainties induced by interaction of Sr atoms with the field of magic-wavelength optical lattice. The fractional contributions to the clock-frequency shift from the spontaneous emission of the lattice-beam amplifier after having passed the optical fiber are determined at the level below 10(-18).
Только метаданные
Measuring the Electric Field Strength of Microwave Radiation at the Frequency of the Radiation Transition Between Rydberg States of Atoms 85Rb
(2020) Stelmashenko, E. F.; Klezovich, O. A.; Baryshev, V. N.; Tishchenko, V. A.; Palchikov, V. G.; Пальчиков, Виталий Геннадьевич
© 2020, Pleiades Publishing, Ltd.The spectral characteristics of the resonance effect of the electromagnetic-induced transparency (EIT) of rubidium atomic vapors induced by intense radiation with a wavelength in the region from 479 to 486 nm in the presence of microwave radiation at a frequency of 1 to 300 GHz, which splits the energy of transition of the atom from the resonant 5P3/2 states into the Rydberg nD5/2 state, are determined. The magnitude of the splitting of the EIT peak is proportional to the electric field intensity of the microwave radiation. Simple approximation expressions are obtained for the numerical calculation of the transition amplitude between Rydberg nD5/2 and (n + 1)P3/2 states with large principal quantum numbers n. A setup has been developed for measuring the electric field intensity of microwave radiation based on measuring the frequency of splitting of the resonance of an electron microscope in the absorption spectrum of probe radiation.
Только метаданные
Microwave Field Metrology Based on Rydberg States of Alkali-Metal Atoms
(2022) Ovsiannikov, V. D.; Palchikov, V. G.; Glukhov, I. L.; Пальчиков, Виталий Геннадьевич
The high-precision determination of microwave radiation parameters may be based on measurements of the spectral characteristics of radiation transitions between the Rydberg states of atoms. Frequencies and matrix elements are calculated for dipole transitions from even-parity nS1/2 and nD5/2 to odd-parity nвЂІP3/2 and nвЂІF7/2 (where nвЂІ = n, n В± 1, n В± 2) for the Rydberg states of alkali-metal atoms. The matrix elements determine the splitting of Rydberg-state energy levels in the field of a resonance microwave (Ојw) radiation, which results in the splitting of the resonance in electromagnetic induced transparency (EIT). Numerical computations based on the single-electron quantum defect method (QDM) and the FuesвЂ™ model potential (FMP) approach with the use of the most reliable data of the current literature on quantum defect values were performed for the 2S, 2P, 2D and 2F series of the Rydberg states of Li, Na, K, Rb and Cs atoms. The calculated data were approximated by quadratic polynomials of the principal quantum number. The polynomial coefficients were determined with the use of a standard curve-fitting interpolation polynomial procedure for numerically presented functions. The approximation equations may be used for the accurate evaluation of the frequencies and matrix elements of Ојw transitions in wide ranges of the Rydberg-state quantum numbers n andgt andgt 1.
Только метаданные
Towards an optical time scale at VNIIFTRI
(2022) Sutyrin, D. V.; Gribov, A. Y.; Balaev, R. I.; Malimon, A. N.; Gorokhina, A. A.; Pal’chikov, V. G.; Пальчиков, Виталий Геннадьевич
© 2022 Kvantovaya Elektronika and IOP Publishing LimitedA circuit for converting the frequency of an optical standard based on ultracold 87Sr atoms is updated for its comparison with the frequency of microwave standards from the State primary standard of time and frequency units and the national time scale, GET 1-2018. The results of the corresponding experiments are reported and analysed. An instrumental complex for reproducing and storing time and frequency units and the national time scale of the primary standard is described; this complex includes an optical standard based on strontium atoms and microwave standards of new generation. The order of formation of the atomic time scale with application of optical standards is also determined.
Только метаданные
Precision Spectroscopy of Rydberg States in Alkaline Earth Atoms for Millimeter-Wave Radiation Measurement
(2023) Glukhov, I. L.; Kamenski, A. A.; Ovsiannikov, V. D.; Pal’chikov, V. G.; Пальчиков, Виталий Геннадьевич
Открытый доступ
Precision Spectroscopy of Radiation Transitions between Singlet Rydberg States of the Group IIb and Yb Atoms
(2023) Glukhov, I. L.; Kamenski, A. A.; Ovsiannikov, V. D.; Palchikov, V. G.; Пальчиков, Виталий Геннадьевич
The measurements of microwave (Ојw) and radio-frequency (RF) radiation quantitative parameters may be based on the quantumвЂ“optical approach to determine the spectral characteristics of radiation transitions between the Rydberg states of atoms. Frequencies and matrix elements are calculated for dipole transitions between opposite-parity Rydberg states nL 1L and nвЂІLВ±1 1LВ±1 (where nвЂІ= n,nВ±1,nВ±2) of the singlet series in the alkalineвЂ“earthвЂ“metal-like atoms of group IIb (Zn, Cd, Hg) and Yb. The matrix elements determine the shifts of Rydberg-state energy levels in the field of resonance Ојw or RF radiation, splitting the resonance of electromagnetically induced transparency (EIT) for intensely absorbed probe radiation. Numerical computations based on the single-electron quantum defect method (QDM) and the FuesвЂ™ model potential (FMP) approach with the use of the most reliable data from the current literature on quantum defect values are performed for frequencies and matrix elements of transitions between singlet Rydberg states of 1S0-, 1P1-, 1D2-, and 1F3-series in Zn, Cd, Hg, and Yb atoms. The calculated data are approximated by polynomials in the powers of the principal quantum numbers. The polynomial coefficients are determined with the use of a standard curve-fitting interpolation polynomial procedure for numerically calculated functions. These approximation expressions provide new possibilities for accurately evaluating the frequencies and matrix elements of dipole transitions between Rydberg states over a wide range of quantum numbers n andgt;andgt; 1, accompanied by the emission and absorption of Ојw and RF photons.
Открытый доступ
Influence of Free Motion of Atoms on Atomic Density-Dependent Effects in Nonlinear Laser Spectroscopy of Resonant Gas Media
(2023) Yudin, V. I.; Taichenachev, A. V.; Basalaev, M. Yu.; Prudnikov, O. N.; Pal’chikov, V. G.; Пальчиков, Виталий Геннадьевич
Открытый доступ
Probe-Field-Ellipticity-Induced Shift in an Atomic Clock
(2023) Yudin, V. I.; Taichenachev, A. V.; Prudnikov, O. N.; Pal’chikov, V. G.; Пальчиков, Виталий Геннадьевич
Только метаданные
Theory of nonlinear sub-Doppler spectroscopy taking into account atomic-motion-induced density-dependent effects in a gas
(2024) Yudin, V. I.; Taichenachev, A. V.; Basalaev, M. Yu.; Prudnikov,O. N.; Pal’chikov, V. G.; Пальчиков, Виталий Геннадьевич