Sergey Magnitskiy - Academia.edu (original) (raw)
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Papers by Sergey Magnitskiy
Quantum Information and Measurement VI 2021
The theory of quantum ghost polarimetry is presented, which describes the reconstruction of ghost... more The theory of quantum ghost polarimetry is presented, which describes the reconstruction of ghost polarization images in biphoton fluxes generated in the process of spontaneous parametric down-conversion.
Conference on Lasers and Electro-Optics Europe
gence and, hence, is much smaller, up to lo3 times, than the seeds both for fanning waves F, and ... more gence and, hence, is much smaller, up to lo3 times, than the seeds both for fanning waves F, and Fand for the cones as a whole. It explains why PC components being higher over their threshold comparing to the cones components appear in generation much later. Linearized equations for the waves +,+, +,-, S,, and Sat low pumps depletion and at equal pump intensities give at zero boundary conditions the following approximate expressions for the thresholds of PC generation via intermediate fanning and of cones generation respectively
Journal of Experimental and Theoretical Physics Letters, 1999
ABSTRACT
Moscow University Physics Bulletin, 2021
Journal of Russian Laser Research, 2015
We present a short review of development and applications of single and biphoton sources. The mai... more We present a short review of development and applications of single and biphoton sources. The main emphasis is on spontaneous parametric down-conversion (SPDC) sources capable of producing timecorrelated photon pairs. We also present a SPDC source of photon pairs at 1,064 nm pumped by a cw 532 nm laser. We consider the fundamental principles of quantum tomography and present results of characterization (entanglement and purity) of biphoton quantum states produced by this source. Additionally, we discuss some aspects of quantum entanglement suppression caused by the Migdall effect in a double-crystal scheme.
Journal of Experimental and Theoretical Physics Letters, 2003
ABSTRACT Variation of the velocity of Ca6+ ions with initial energies of 5.9 and 11.4 MeV/nucleon... more ABSTRACT Variation of the velocity of Ca6+ ions with initial energies of 5.9 and 11.4 MeV/nucleon has been experimentally studied in the course of ion stopping in a solid aerogel target. The method is based on measuring the Doppler shift in the K-shell spectrum of decelerated Ca19+ and Ca18+ ions. High spatial resolution (30–50 mm) in the direction of the ion beam propagation achieved simultaneously with high spectral resolution (λ/Δλ=1000–3000) in the X-ray wavelength interval of 2–4 Å allowed the ion beam dynamics in the solid target to be directly measured. By measuring variations in the relative intensity of spectral lines, it is possible to monitor the redistribution of the ions over charged states during their motion in the target.
Solid State Lasers for Application to Inertial Confinement Fusion (ICF), 1995
ABSTRACT
Journal of Experimental and Theoretical Physics Letters, 1999
ABSTRACT
2014 International Conference Laser Optics, 2014
Recent technological achievements provide unique possibilities for the composition of arrays of n... more Recent technological achievements provide unique possibilities for the composition of arrays of nanostructures with desired properties, nowadays referred to as metamaterials, that are perspective for various applications. A special place here belongs to chiral nanostructures that could compete with the natural materials both in efficiency and size of functional elements. For the case of metamaterials, optical activity originates from a special shape of the elements and their arrangement within an array. This research field has been actively developing over the last years and significant values of chirality effects were observed in the linear-optical response of metallic nanostructures [1]. Furthermore, chirality effects are more pronounced in the nonlinear-optical response of such structures [2, 3], the latter being governed to a great extent by the local field distribution inside the metal nanostructures. In this talk we will focus mostly on the recent results on the linear and non...
Quantum Electronics, 1995
The results are given of experiments involving the generation (and subsequent probing) of a high-... more The results are given of experiments involving the generation (and subsequent probing) of a high-temperature surface plasma produced by 300 fs pulses of 5×1015 W cm-2 intensity. An optical image of the plasma was formed. This made it possible to achieve not only temporal but also spatial resolution, and to determine the dynamics of the transverse structure of the plasma from reflection of a probe pulse. The recorded plasma temperature was 140 eV and the expansion velocity was of the order of 107 cm s-1.
Quantum Electronics, 1995
The results are given of experiments involving the generation (and subsequent probing) of a high-... more The results are given of experiments involving the generation (and subsequent probing) of a high-temperature surface plasma produced by 300 fs pulses of 5×1015 W cm-2 intensity. An optical image of the plasma was formed. This made it possible to achieve not only temporal but also spatial resolution, and to determine the dynamics of the transverse structure of the plasma from reflection of a probe pulse. The recorded plasma temperature was 140 eV and the expansion velocity was of the order of 107 cm s-1.
EPJ Web of Conferences
The double-crystal scheme for polarization-entangled photon pairs generation is presented. The ne... more The double-crystal scheme for polarization-entangled photon pairs generation is presented. The negative impact of the Migdall effect on the polarization entanglement is fully compensated in the scheme. The theory for quantifying of entanglement decrease as the action of the Migdall effect is formulated.
EPJ Web of Conferences
In the report the parameterization of few-photon light sources is discussed. This question relate... more In the report the parameterization of few-photon light sources is discussed. This question relates to a new area of research in quantum optics - the development of methods for characterizing optical components and devices used in optical quantum technologies that are supposed to be used in industry. Apart from, the recent results in this field obtained in the Laboratory of Experimental Quantum Optics and Nanophotonics of M.V.Lomonosov Moscow State University are briefly presented
EPJ Web of Conferences
We present a numerical procedure for recovering of photon statistics of few-photon pulsed laser s... more We present a numerical procedure for recovering of photon statistics of few-photon pulsed laser sources. It provides controlled level of mean error for both of photon and photocounting statistics. It is shown that procedure is correct for model data with average error level of 10−4 and fidelity 0.9998.
Optical Information Science and Technology (OIST97): Optical Memory and Neural Networks
Soviet Journal of Quantum Electronics, 1977
Quantum Information and Measurement VI 2021
The theory of quantum ghost polarimetry is presented, which describes the reconstruction of ghost... more The theory of quantum ghost polarimetry is presented, which describes the reconstruction of ghost polarization images in biphoton fluxes generated in the process of spontaneous parametric down-conversion.
Conference on Lasers and Electro-Optics Europe
gence and, hence, is much smaller, up to lo3 times, than the seeds both for fanning waves F, and ... more gence and, hence, is much smaller, up to lo3 times, than the seeds both for fanning waves F, and Fand for the cones as a whole. It explains why PC components being higher over their threshold comparing to the cones components appear in generation much later. Linearized equations for the waves +,+, +,-, S,, and Sat low pumps depletion and at equal pump intensities give at zero boundary conditions the following approximate expressions for the thresholds of PC generation via intermediate fanning and of cones generation respectively
Journal of Experimental and Theoretical Physics Letters, 1999
ABSTRACT
Moscow University Physics Bulletin, 2021
Journal of Russian Laser Research, 2015
We present a short review of development and applications of single and biphoton sources. The mai... more We present a short review of development and applications of single and biphoton sources. The main emphasis is on spontaneous parametric down-conversion (SPDC) sources capable of producing timecorrelated photon pairs. We also present a SPDC source of photon pairs at 1,064 nm pumped by a cw 532 nm laser. We consider the fundamental principles of quantum tomography and present results of characterization (entanglement and purity) of biphoton quantum states produced by this source. Additionally, we discuss some aspects of quantum entanglement suppression caused by the Migdall effect in a double-crystal scheme.
Journal of Experimental and Theoretical Physics Letters, 2003
ABSTRACT Variation of the velocity of Ca6+ ions with initial energies of 5.9 and 11.4 MeV/nucleon... more ABSTRACT Variation of the velocity of Ca6+ ions with initial energies of 5.9 and 11.4 MeV/nucleon has been experimentally studied in the course of ion stopping in a solid aerogel target. The method is based on measuring the Doppler shift in the K-shell spectrum of decelerated Ca19+ and Ca18+ ions. High spatial resolution (30–50 mm) in the direction of the ion beam propagation achieved simultaneously with high spectral resolution (λ/Δλ=1000–3000) in the X-ray wavelength interval of 2–4 Å allowed the ion beam dynamics in the solid target to be directly measured. By measuring variations in the relative intensity of spectral lines, it is possible to monitor the redistribution of the ions over charged states during their motion in the target.
Solid State Lasers for Application to Inertial Confinement Fusion (ICF), 1995
ABSTRACT
Journal of Experimental and Theoretical Physics Letters, 1999
ABSTRACT
2014 International Conference Laser Optics, 2014
Recent technological achievements provide unique possibilities for the composition of arrays of n... more Recent technological achievements provide unique possibilities for the composition of arrays of nanostructures with desired properties, nowadays referred to as metamaterials, that are perspective for various applications. A special place here belongs to chiral nanostructures that could compete with the natural materials both in efficiency and size of functional elements. For the case of metamaterials, optical activity originates from a special shape of the elements and their arrangement within an array. This research field has been actively developing over the last years and significant values of chirality effects were observed in the linear-optical response of metallic nanostructures [1]. Furthermore, chirality effects are more pronounced in the nonlinear-optical response of such structures [2, 3], the latter being governed to a great extent by the local field distribution inside the metal nanostructures. In this talk we will focus mostly on the recent results on the linear and non...
Quantum Electronics, 1995
The results are given of experiments involving the generation (and subsequent probing) of a high-... more The results are given of experiments involving the generation (and subsequent probing) of a high-temperature surface plasma produced by 300 fs pulses of 5×1015 W cm-2 intensity. An optical image of the plasma was formed. This made it possible to achieve not only temporal but also spatial resolution, and to determine the dynamics of the transverse structure of the plasma from reflection of a probe pulse. The recorded plasma temperature was 140 eV and the expansion velocity was of the order of 107 cm s-1.
Quantum Electronics, 1995
The results are given of experiments involving the generation (and subsequent probing) of a high-... more The results are given of experiments involving the generation (and subsequent probing) of a high-temperature surface plasma produced by 300 fs pulses of 5×1015 W cm-2 intensity. An optical image of the plasma was formed. This made it possible to achieve not only temporal but also spatial resolution, and to determine the dynamics of the transverse structure of the plasma from reflection of a probe pulse. The recorded plasma temperature was 140 eV and the expansion velocity was of the order of 107 cm s-1.
EPJ Web of Conferences
The double-crystal scheme for polarization-entangled photon pairs generation is presented. The ne... more The double-crystal scheme for polarization-entangled photon pairs generation is presented. The negative impact of the Migdall effect on the polarization entanglement is fully compensated in the scheme. The theory for quantifying of entanglement decrease as the action of the Migdall effect is formulated.
EPJ Web of Conferences
In the report the parameterization of few-photon light sources is discussed. This question relate... more In the report the parameterization of few-photon light sources is discussed. This question relates to a new area of research in quantum optics - the development of methods for characterizing optical components and devices used in optical quantum technologies that are supposed to be used in industry. Apart from, the recent results in this field obtained in the Laboratory of Experimental Quantum Optics and Nanophotonics of M.V.Lomonosov Moscow State University are briefly presented
EPJ Web of Conferences
We present a numerical procedure for recovering of photon statistics of few-photon pulsed laser s... more We present a numerical procedure for recovering of photon statistics of few-photon pulsed laser sources. It provides controlled level of mean error for both of photon and photocounting statistics. It is shown that procedure is correct for model data with average error level of 10−4 and fidelity 0.9998.
Optical Information Science and Technology (OIST97): Optical Memory and Neural Networks
Soviet Journal of Quantum Electronics, 1977