Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Distribution of energy in spectroenergetic converters

А. Д. Слободяник, Л. Г. Коваль, М. В. Лисий, A. I. Biliuk, Я. І. Ярославський, М. В. Лысый, A. I. Bilyuk, J. Yaroslavskiy

Published Jan 1, 2018• 0 citations
OpenAlex

Abstract

The problem of research of spectroscopic converters of the optical and near-range range is considered in this paper. The theoretical model of such spectrogenerators operating in conditions of self-excitation of the system itself is offered. A model based on quantum radiation laws and interaction of radiation with matter has been developed. The block diagram of the spectrotransformer and the scheme of the unified transformation of wavelengths are presented. The method of transformation of the wavelengths of light waves is proposed based on the information-energy transformation of the light spectrum. The proposed method for transforming the wavelengths of light waves on the basis of the information-energy transformation of the light spectrum includes an effective working environment of resonant optical pumping of alkali metal vapors, which allows the population of the upper atomic levels to occur and predetermines the inverse population of relatively lower energy levels. This creates the possibility of spectral transformation of waves of a wide cosmic range in a predetermined interval of wavelengths. The problem of the investigation of spectroscopic and optical converters of the optical and near- range range is presented in this paper. The theoretical model of such spectrogenerators operating in conditions of self-excitation of the system itself is offered. The developed model is based on the quantum laws of radiation and the interaction of radiation with matter. The basis of this theory is the Schrödinger equation and its separate solutions are presented. Theoretical investigations of spectroenergetic converters are carried out. A systematic analysis of the quantum theory of radiation and its interaction with the most suitable media has been carried out. The obtained laws are suitable for solving the problem of energy transformation of different ranges of the energy spectrum.

Related papers

Spectral characteristics of light wave reversal in a nondegenerate four-wave interaction in a resonant medium

Pavel A Apanasevich, Anatolii A Afanas'ev, С. П. Жвавый

An investigation is made of wavefront reversal of optical radiation in a nondegenerate four-wave interaction in a resonant medium. It is shown that for a pump intensity comparable with the saturation intensity of the absorption line of the resonant medium, the reversed wave spectrum has two side peaks positioned symmetrically relative to the central peak which corresponds to a degenerate interaction. These side peaks are attributable to regions of negative absorption (amplification) of weak radiation by the resonant medium situated in a high-power field of opposite pump waves. The dependences of the magnitudes and positions of these peaks on the pump intensity can be used to control the spectral and energy characteristics of the reflected radiation. The conditions for self-excitation of a reversing system based on resonant four-wave interaction are determined. In particular, the ranges of the pump intensity and the optical density of the resonant medium in which self-excitation of the reversing system may occur, are determined for a degenerate interaction.

Soviet Journal of Quantum Electronics•Feb 28, 1983•0 citations

Axions in a Dispersed Medium: Light Scattering, Vavilov-Cherenkov Radiation

V. E. Ogluzdin

Introduction-What happens to photons of laser radiation whose energy differs from the energy of the inter-level electronic transitions of atoms of the substance under study. According to Bohr and Einstein, the traditional scheme of interaction between radiation and matter includes the following processes: 1) resonant absorption of radiation, 2) spontaneous radiation, 3) resonant stimulated radiation. In the absence of resonance between the pumping frequency and the frequencies of electronic transitions in atoms alloying a dispersed medium, the interaction of radiation and matter is carried out due to the annihilation of pairs of pump radiation photons, the birth of axions and their subsequent decay into new photons whose energy differs from the energy of the pump photons. If in atomic vapors in the resonant case one photon is required for the transition of an electron from the ground level S to the excited P, then in the non-resonant case such a transition is possible due to the annihilation of a pair of photons.

Global Journal of Human Social Science•Dec 9, 2023•0 citations

APPLICATION OF PROBABILITY METHOD FOR CALCULATION OF OPTICAL CHARACTERISTICS OF QUANTUM GENERATORS OF LIGHT

Boris I Stepanov, Viktor P. Gribkovskii

Abstract : On the basis of the probability method and the resonator theory, it is possible to explain the basic properties of quantum generators of light and in a number of the most important cases to obtain quite accurate correlation with experiment. During use of probability method of calculation, energy levels and probability of transition between them are used as initial data. The main problem is reduced to determination of populations of separate levels depending upon intensity of irradiation, with subsequent calculation of number of optical transitions. In quantum generators it is necessary to consider transitions between levels which appear under the action of pumping radiation, as well as under action of the generated radiation itself.

•May 26, 1965•0 citations

Decay kinetics of optically excited resonance states of atomic sodium in cylindrical cells

M. L. Yanson, V. B. Grushevskii, P. Klyavinsh

This study carries out an experimental investigation of the radiative decay kinetics of the resonance states of sodium atoms excited by dye laser radiation. The effective radiative decay rates of the resonance states as a function of vapor temperature, primary and impurity gas presssure, and the radius of the cylindrical volume containing the vapor were obtained by computer processing ofthe experimental curves using a kinetic decay model.-The radiative decay rate calculated in the Holstein approximation is compared to the measured values. The mechanisms of optical excitation of metallic vapors in resonance radiation trapping conditions have been investigated theoretically to a sufficient degree.lr At the same time there have been few experimental studies devoted to this problem. The decay kinetics of the atomic resonance states in the vapors of alkali metals have largely been studied for a planar radiating layer,2-6 where the nonideal geometry of the radiating volume made it necessary to introduce a fitting parameter to compare the experimental results to theory. The radiative decay kinetics of the populations of the resonance 3P states of atomic Na under conditions of axial laser excitation of a cylindrical shell are investigated in the present paper for the first time; this made it possible to carry out a comparison to theory without introducing variable parameters, since in this case exact analytic expressions are known for the effective lifetimes. It should also be emphasized that cylindrically configured cells are most commonly used in experimental research and hence these results have a certain interest in such studies. For our analysis we selected a concentration range of normal sodium atoms of 3 X 1013 <;no<;4 X 1015 cm - where selective optical excitation of the fine structure components (FSC) 32Pl/2 and 32P3/2 are accompanied by collisional mixing, which has a substantial effect on the persistence kinetics of the NaD lines. Under these conditions the decay of the directly excited fine structure component is biexponential, while the time dependence of the population of the corresponding level takes the form

OptSp•Sep 1, 1989•0 citations

Transformation of the spatial spectrum of optical radiation in parametric processes

R A Eremeeva, Vladimir A. Kudryashov, I. N. Matveev +1 more

An investigation was made of the transformation of the spatial spectrum of optical radiation as a result of passage through an excited nonlinear medium. Experiments confirmed that, under certain conditions, this medium reemitted the energy of a plane wave of the incident radiation in the form of side spatial frequencies, whose spectrum corresponded to the autocorrelation function of the spatial spectrum of the pump radiation. Two models of parametric processes were used to account for the observed effect. The effect should be useful in investigations of spatially modulated radiation traveling across a phase-distorting medium.

Soviet Journal of Quantum Electronics•Dec 31, 1981•1 citation

Research of radiation characteristics in a parametrically driven cavity

Xue SHANG, Binfang Cao, Guo Miaodi +2 more

Cavity quantum electrodynamics (QED) serves as a fundamental platform for studying light-matter interactions at a single-particle level and has been extensively investigated in fundamental physics and quantum information. Recent development of parametrically squeezed techniques has demonstrated that they have the remarkable ability to exponentially enhance coherent atom-cavity coupling. However, the full extent to which these techniques can manipulate quantum optical phenomena requires further exploration. This work systematically investigates the influence of optical parametric amplification on single-photon excited atom-cavity systems within a parametrically driven cavity. In the proposed model, optical parametric amplification converts the driving photons into a squeezed cavity mode, which enhances the atom-cavity interaction into the strong coupling region. Through analytical derivation of atomic and cavity radiation spectra, we demonstrate that the optical parametric amplification induces splitting of atomic radiation spectra while exerting negligible effects on spectral intensity. Conversely, the cavity transmission spectrum exhibits both pronounced splitting and nonlinear intensity amplification. Notably, as driving field intensity approaches a critical intensity regime, the cavity radiation spectrum intensity is significantly enhanced. The underlying mechanism is parametric driving amplification, which converts the driving light into a squeezed cavity mode. When this squeezed mode is mapped back to the fundamental mode of the cavity through Bogoliubov squeezing transformation, the pump photons within the squeezed cavity mode are converted into the photons that contribute to the radiation spectrum of the cavity, thereby amplifying its intensity. This parametric enhancement method not only deepens the basic understanding of light-matter interactions, but also establishes a practical framework for improving the single-photon detection sensitivity in cavity-based quantum systems. These findings have broad prospects for quantum sensing and information processing applications.

Acta Physica Sinica•Jan 1, 2025•0 citations
The problem of research of spectroscopic converters of the optical and near-range range is considered in this paper. The theoretical model of such spectrogenerators operating in conditions of self-excitation of the system itself is offered. A model based on quantum radiation laws and interaction of radiation with matter has been developed. The block diagram of the spectrotransformer and the scheme of the unified transformation of wavelengths are presented. The method of transformation of the wavelengths of light waves is proposed based on the information-energy transformation of the light spectrum. The proposed method for transforming the wavelengths of light waves on the basis of the information-energy transformation of the light spectrum includes an effective working environment of resonant optical pumping of alkali metal vapors, which allows the population of the upper atomic levels to occur and predetermines the inverse population of relatively lower energy levels. This creates the possibility of spectral transformation of waves of a wide cosmic range in a predetermined interval of wavelengths. The problem of the investigation of spectroscopic and optical converters of the optical and near- range range is presented in this paper. The theoretical model of such spectrogenerators operating in conditions of self-excitation of the system itself is offered. The developed model is based on the quantum laws of radiation and the interaction of radiation with matter. The basis of this theory is the Schrödinger equation and its separate solutions are presented. Theoretical investigations of spectroenergetic converters are carried out. A systematic analysis of the quantum theory of radiation and its interaction with the most suitable media has been carried out. The obtained laws are suitable for solving the problem of energy transformation of different ranges of the energy spectrum.
An investigation is made of wavefront reversal of optical radiation in a nondegenerate four-wave interaction in a resonant medium. It is shown that for a pump intensity comparable with the saturation intensity of the absorption line of the resonant medium, the reversed wave spectrum has two side peaks positioned symmetrically relative to the central peak which corresponds to a degenerate interaction. These side peaks are attributable to regions of negative absorption (amplification) of weak radiation by the resonant medium situated in a high-power field of opposite pump waves. The dependences of the magnitudes and positions of these peaks on the pump intensity can be used to control the spectral and energy characteristics of the reflected radiation. The conditions for self-excitation of a reversing system based on resonant four-wave interaction are determined. In particular, the ranges of the pump intensity and the optical density of the resonant medium in which self-excitation of the reversing system may occur, are determined for a degenerate interaction.
Introduction-What happens to photons of laser radiation whose energy differs from the energy of the inter-level electronic transitions of atoms of the substance under study. According to Bohr and Einstein, the traditional scheme of interaction between radiation and matter includes the following processes: 1) resonant absorption of radiation, 2) spontaneous radiation, 3) resonant stimulated radiation. In the absence of resonance between the pumping frequency and the frequencies of electronic transitions in atoms alloying a dispersed medium, the interaction of radiation and matter is carried out due to the annihilation of pairs of pump radiation photons, the birth of axions and their subsequent decay into new photons whose energy differs from the energy of the pump photons. If in atomic vapors in the resonant case one photon is required for the transition of an electron from the ground level S to the excited P, then in the non-resonant case such a transition is possible due to the annihilation of a pair of photons.
Abstract : On the basis of the probability method and the resonator theory, it is possible to explain the basic properties of quantum generators of light and in a number of the most important cases to obtain quite accurate correlation with experiment. During use of probability method of calculation, energy levels and probability of transition between them are used as initial data. The main problem is reduced to determination of populations of separate levels depending upon intensity of irradiation, with subsequent calculation of number of optical transitions. In quantum generators it is necessary to consider transitions between levels which appear under the action of pumping radiation, as well as under action of the generated radiation itself.
This study carries out an experimental investigation of the radiative decay kinetics of the resonance states of sodium atoms excited by dye laser radiation. The effective radiative decay rates of the resonance states as a function of vapor temperature, primary and impurity gas presssure, and the radius of the cylindrical volume containing the vapor were obtained by computer processing ofthe experimental curves using a kinetic decay model.-The radiative decay rate calculated in the Holstein approximation is compared to the measured values. The mechanisms of optical excitation of metallic vapors in resonance radiation trapping conditions have been investigated theoretically to a sufficient degree.lr At the same time there have been few experimental studies devoted to this problem. The decay kinetics of the atomic resonance states in the vapors of alkali metals have largely been studied for a planar radiating layer,2-6 where the nonideal geometry of the radiating volume made it necessary to introduce a fitting parameter to compare the experimental results to theory. The radiative decay kinetics of the populations of the resonance 3P states of atomic Na under conditions of axial laser excitation of a cylindrical shell are investigated in the present paper for the first time; this made it possible to carry out a comparison to theory without introducing variable parameters, since in this case exact analytic expressions are known for the effective lifetimes. It should also be emphasized that cylindrically configured cells are most commonly used in experimental research and hence these results have a certain interest in such studies. For our analysis we selected a concentration range of normal sodium atoms of 3 X 1013 <;no<;4 X 1015 cm - where selective optical excitation of the fine structure components (FSC) 32Pl/2 and 32P3/2 are accompanied by collisional mixing, which has a substantial effect on the persistence kinetics of the NaD lines. Under these conditions the decay of the directly excited fine structure component is biexponential, while the time dependence of the population of the corresponding level takes the form
An investigation was made of the transformation of the spatial spectrum of optical radiation as a result of passage through an excited nonlinear medium. Experiments confirmed that, under certain conditions, this medium reemitted the energy of a plane wave of the incident radiation in the form of side spatial frequencies, whose spectrum corresponded to the autocorrelation function of the spatial spectrum of the pump radiation. Two models of parametric processes were used to account for the observed effect. The effect should be useful in investigations of spatially modulated radiation traveling across a phase-distorting medium.
Cavity quantum electrodynamics (QED) serves as a fundamental platform for studying light-matter interactions at a single-particle level and has been extensively investigated in fundamental physics and quantum information. Recent development of parametrically squeezed techniques has demonstrated that they have the remarkable ability to exponentially enhance coherent atom-cavity coupling. However, the full extent to which these techniques can manipulate quantum optical phenomena requires further exploration. This work systematically investigates the influence of optical parametric amplification on single-photon excited atom-cavity systems within a parametrically driven cavity. In the proposed model, optical parametric amplification converts the driving photons into a squeezed cavity mode, which enhances the atom-cavity interaction into the strong coupling region. Through analytical derivation of atomic and cavity radiation spectra, we demonstrate that the optical parametric amplification induces splitting of atomic radiation spectra while exerting negligible effects on spectral intensity. Conversely, the cavity transmission spectrum exhibits both pronounced splitting and nonlinear intensity amplification. Notably, as driving field intensity approaches a critical intensity regime, the cavity radiation spectrum intensity is significantly enhanced. The underlying mechanism is parametric driving amplification, which converts the driving light into a squeezed cavity mode. When this squeezed mode is mapped back to the fundamental mode of the cavity through Bogoliubov squeezing transformation, the pump photons within the squeezed cavity mode are converted into the photons that contribute to the radiation spectrum of the cavity, thereby amplifying its intensity. This parametric enhancement method not only deepens the basic understanding of light-matter interactions, but also establishes a practical framework for improving the single-photon detection sensitivity in cavity-based quantum systems. These findings have broad prospects for quantum sensing and information processing applications.