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

Bulletin of the Russian Academy of Sciences Physics

Coherent Effects in Nonlinear Spectroscopy of Counterpropagating Waves

Э. Г. Сапрыкин, А. А. Черненко

Published May 1, 2026• 0 citations
Publisher

Abstract

Abstract— The physical processes of formation of the saturated absorption resonance spectrum on degenerate transitions of atoms in the method of a probe field of counterpropagating waves of arbitrary intensity are studied. It is shown that the effects of magnetic coherence of levels induced by counterpropagating wave fields can change the shape of the absorption resonance up to its complete inversion.

DOI
10.1134/s1062873826700395

Related papers

Polarization phenomena in the transparency and adsorption effects induced by the field of counterpropagating waves

Э. Г. Сапрыкин, А. А. Черненко, Anatolii M. Shalagin

The physical processes that form the resonances of saturated absorption and magnetic scanning in the field of counterpropagating waves of an arbitrary intensity when their polarizations change are numerically simulated. The atomic transition with level moment J = 1 is used as an example to show that the anomalies in the experimental saturated absorption spectra are determined by the degree of opening of the atomic transition. In the case of magnetic scanning, the anomalies are caused by the magnetic coherence induced by the wave fields at the levels of the lower state rather than by its transfer from the excited states, as was proposed earlier.

Journal of Experimental and Theoretical Physics•Aug 1, 2014•12 citations

Resonances of electromagnetic-induced transparency and electromagnetic-induced absorption at the transition with level momenta J=1/2 in unidirectional wave spectroscopy

Э. Г. Сапрыкин, А. А. Черненко

Abstract The physical processes that form the saturated absorption resonance spectra on the atomic transition with level momenta J= 1/2 in the field of unidirectional waves of arbitrary intensities are investigated both analytically and numerically. It is shown that the narrow structures of the nonlinear resonance spectra (resonances of electromagnetic-induced transparency and absorption) and the processes forming them are determined by the direction of the light wave polarizations, degree of openness of the atomic transition, and the saturating wave intensity. The conditions under which the nonlinear resonance is exclusively coherent, due to the magnetic coherence of transition levels, are revealed.

Journal of Physics Conference Series•Nov 1, 2021•0 citations

Coherent Resonance of Saturated Absorption in Spectroscopy of Counterpropagating Waves

А. А. Черненко, Э. Г. Сапрыкин, Anatolii M. Shalagin

Results of theoretical researches of the saturated absorption resonance shape in a method of the probing field on V-type of transitions are represented. It is shown that in case of opposite circulary polarized optical fields the resonance is shown in the form of cross, and its form strongly depends on relaxation constants of levels and it can be represented as in the form of a dip, and absorption peak. Thus the peak form has exclusively coherent character. Atomic transitions are offered, on which observation of the given effect is possible.

Journal of Modern Physics•Jan 1, 2013•1 citation

Resonance shapes of the saturated absorption and magnetic scanning on transition with J = 1 - J = 2 in a spectroscopy of unidirectional waves

Э. Г. Сапрыкин, А. А. Черненко

Physical processes forming resonance spectra of the saturated absorption and magnetic scanning on transition with level moments J = 1-J = 2 in the field of unidirectional waves of arbitrary intensities are numerically studied. It is shown that the anomalies of nonlinear resonance spectra are determined by the character of wave polarizations and by the degree of openness of atomic transition, and the anomalies of the magnetic scanning spectra are due to the magnetic coherence of the lower state levels, and not to its transfer from the excited states, as previously thought.

AIP conference proceedings•Jan 1, 2019•0 citations

Numerical studies of the saturated absorption resonances in a nonlinear spectroscopy of the degenerate atomic transitions

Э. Г. Сапрыкин, А. А. Черненко

Abstract The physical processes forming the saturated absorption resonance spectra at a number of degenerate atomic transitions at their interaction with coherent optical fields and incoherent ield of spontaneous radiation of excited atoms are studied numerically. The features of behavior of nonlinear resonance spectra depending on the degree of degeneration and relaxation parametersof level transitions, character of polarizations and intensities, as well as direction of propagation of optical fields are analyzed.

Journal of Physics Conference Series•Jan 1, 2021•0 citations

Effects of Saturation and Self-Saturation in Unidirectional-Wave Spectroscopy of Transition between Levels with a Total Moment of J = 1

Э. Г. Сапрыкин, А. А. Черненко

Abstract Nonlinear absorption of a probe field in a system of degenerate levels of an atom characterized by a total moment of J = 1 in unidirectional waves is studied analytically and numerically taking into account saturation by its own spontaneous emission (OSE). The trends in changes of the amplitude and frequency characteristics of the nonlinear resonance associated with open and closed types of transitions for different polarizations of the waves that are introduced by self-saturation are established. Specific manifestations of the effect, including those related to magnetic coherence of levels, are revealed.

Optics and Spectroscopy•Oct 1, 2019•2 citations
Abstract— The physical processes of formation of the saturated absorption resonance spectrum on degenerate transitions of atoms in the method of a probe field of counterpropagating waves of arbitrary intensity are studied. It is shown that the effects of magnetic coherence of levels induced by counterpropagating wave fields can change the shape of the absorption resonance up to its complete inversion.
The physical processes that form the resonances of saturated absorption and magnetic scanning in the field of counterpropagating waves of an arbitrary intensity when their polarizations change are numerically simulated. The atomic transition with level moment J = 1 is used as an example to show that the anomalies in the experimental saturated absorption spectra are determined by the degree of opening of the atomic transition. In the case of magnetic scanning, the anomalies are caused by the magnetic coherence induced by the wave fields at the levels of the lower state rather than by its transfer from the excited states, as was proposed earlier.
Abstract The physical processes that form the saturated absorption resonance spectra on the atomic transition with level momenta J= 1/2 in the field of unidirectional waves of arbitrary intensities are investigated both analytically and numerically. It is shown that the narrow structures of the nonlinear resonance spectra (resonances of electromagnetic-induced transparency and absorption) and the processes forming them are determined by the direction of the light wave polarizations, degree of openness of the atomic transition, and the saturating wave intensity. The conditions under which the nonlinear resonance is exclusively coherent, due to the magnetic coherence of transition levels, are revealed.
Results of theoretical researches of the saturated absorption resonance shape in a method of the probing field on V-type of transitions are represented. It is shown that in case of opposite circulary polarized optical fields the resonance is shown in the form of cross, and its form strongly depends on relaxation constants of levels and it can be represented as in the form of a dip, and absorption peak. Thus the peak form has exclusively coherent character. Atomic transitions are offered, on which observation of the given effect is possible.
Physical processes forming resonance spectra of the saturated absorption and magnetic scanning on transition with level moments J = 1-J = 2 in the field of unidirectional waves of arbitrary intensities are numerically studied. It is shown that the anomalies of nonlinear resonance spectra are determined by the character of wave polarizations and by the degree of openness of atomic transition, and the anomalies of the magnetic scanning spectra are due to the magnetic coherence of the lower state levels, and not to its transfer from the excited states, as previously thought.
Abstract The physical processes forming the saturated absorption resonance spectra at a number of degenerate atomic transitions at their interaction with coherent optical fields and incoherent ield of spontaneous radiation of excited atoms are studied numerically. The features of behavior of nonlinear resonance spectra depending on the degree of degeneration and relaxation parametersof level transitions, character of polarizations and intensities, as well as direction of propagation of optical fields are analyzed.
Abstract Nonlinear absorption of a probe field in a system of degenerate levels of an atom characterized by a total moment of J = 1 in unidirectional waves is studied analytically and numerically taking into account saturation by its own spontaneous emission (OSE). The trends in changes of the amplitude and frequency characteristics of the nonlinear resonance associated with open and closed types of transitions for different polarizations of the waves that are introduced by self-saturation are established. Specific manifestations of the effect, including those related to magnetic coherence of levels, are revealed.