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

Soviet Journal of Quantum Electronics

Characteristics and applications of self-diffraction of light waves with noncollinear polarizations

N. N. Zhukov, O. P. Zaskal'Ko, Ivan G. Kuznetsov

Published May 31, 1991• 1 citation
Publisher

Abstract

An analysis is made of some characteristics of the transient self-diffraction of two waves with different polarizations in an isotropic medium with a scalar response. It is demonstrated that this may be used as the basis of a polarization switch that can not only switch but also amplify a signal wave. A method of measuring the degree of temporal coherence of optical beams, including those with a well-developed transient speckle structure, was proposed and implemented experimentally.

DOI
10.1070/qe1991v021n05abeh003874

Related papers

Characteristics of transient amplification of noise waves in intersecting light beams

N. N. Zhukov, O. P. Zaskal'Ko, Ivan G. Kuznetsov

A comparison is made of the characteristics of transient amplification of noise waves in a medium with a local inertial response in fields of one and two intersecting coherent optical beams. It is shown that in the case of intersecting optical beams of the same intensity the process of transient amplification of noise waves is suppressed along all directions, except those lying on a conical surface which passes through the original beams and has an axis perpendicular to the bisector of the angle of convergence of the beams.

Soviet Journal of Quantum Electronics•Nov 30, 1990•0 citations

Dynamic self-diffraction of coherent light beams

V. L. Vinetskiĭ, Nikolai V. Kukhtarev, S. G. Odulov +1 more

A review is given of the present state of theoretical and experimental work on the interaction of two coherent light beams of equal frequency in a nonlinear medium. It is shown that dynamic self-diffraction is substantially different for media with different types of response. Stationary energy transfer between interacting beams is possible in the case of nonlocal nonsymmetric response, whereas this type of transfer is forbidden in the case of local response. Different mechanisms for self-induced changes in the refractive index are examined together with the corresponding processes of energy transfer between the writing beams. The more important applications of dynamic self-diffraction are discussed.

Soviet Physics Uspekhi•Sep 30, 1979•200 citations

Self-diffraction and stimulated Brillouin scattering of opposite light waves in absorbing media

O. P. Zaskal'Ko, A. A. Zozulya, N. N. Panaioti +1 more

A study was made of the characteristics of self-diffraction of opposite optical waves in the case of a thermal mechanism of grating formation. The main factor limiting the self-diffraction efficiency was found to be a low-threshold absolute instability of the optical wave due to stimulated Brillouin scattering. The conditions were found under which the radiation generated by stimulated Brillouin scattering had a high spatial and temporal coherence.

Soviet Journal of Quantum Electronics•Jun 30, 1987•0 citations

Self-diffraction in optically dense media

M. Belov, M. A. Selifanov, Edward A. Manykin

We investigate the phenomenon of self-diffraction in optically dense media for those cases where it is necessary to take into account the inverse effect of the medium on the field. Our study is based on a numerical analysis of the Maxwell–Bloch equations. This analysis reveals that, as the concentration of two-level systems increases, an anomalous response of four-wave mixing arises. This response is associated with the appearance of a self-diffraction signal in the negative-delay region and also with a faster decay of coherence in the system.

Soviet Journal of Quantum Electronics•Nov 30, 1992•0 citations

Coherent-transient enhancement of polarization changes under two-photon interaction conditions

A. Zh. Muradyan, L. Petrosyan

A change in the polarization of an ultrashort light pulse is induced by a strong polarized pulse when the two pulses interact with three-level atoms in a gaseous medium with arbitrary values of the momentum. An analysis is made of the possibility of increasing the output signal (i.e., the amplitude of Cartesian component of a probe wave rotated by 90°) by modulation of the input wave phase in accordance with oscillations of a coherent-transient response of the gaseous medium.

Soviet Journal of Quantum Electronics•Sep 30, 1991•0 citations

Self-diffraction of high-power short light pulses in resonant media

Pavel A Apanasevich, Anatolii A Afanas'ev, А. И. Урбанович

A theoretical analysis is made of the self-diffraction of short light pulses in an induced amplitude-phase grating in a thin layer of resonant medium. Expressions describing the amplitudes (intensities) of the diffracted beams are derived and analyzed. It is shown that the nature of the amplitude modulation of the light diffracted into small angles depends strongly on the amplitudes of the input pulses. It is demonstrated that transient self-diffraction of short pulses can be used in estimating the dipole moment of a saturable transition.

Soviet Journal of Quantum Electronics•Jul 31, 1975•0 citations
An analysis is made of some characteristics of the transient self-diffraction of two waves with different polarizations in an isotropic medium with a scalar response. It is demonstrated that this may be used as the basis of a polarization switch that can not only switch but also amplify a signal wave. A method of measuring the degree of temporal coherence of optical beams, including those with a well-developed transient speckle structure, was proposed and implemented experimentally.
A comparison is made of the characteristics of transient amplification of noise waves in a medium with a local inertial response in fields of one and two intersecting coherent optical beams. It is shown that in the case of intersecting optical beams of the same intensity the process of transient amplification of noise waves is suppressed along all directions, except those lying on a conical surface which passes through the original beams and has an axis perpendicular to the bisector of the angle of convergence of the beams.
A review is given of the present state of theoretical and experimental work on the interaction of two coherent light beams of equal frequency in a nonlinear medium. It is shown that dynamic self-diffraction is substantially different for media with different types of response. Stationary energy transfer between interacting beams is possible in the case of nonlocal nonsymmetric response, whereas this type of transfer is forbidden in the case of local response. Different mechanisms for self-induced changes in the refractive index are examined together with the corresponding processes of energy transfer between the writing beams. The more important applications of dynamic self-diffraction are discussed.
We investigate the phenomenon of self-diffraction in optically dense media for those cases where it is necessary to take into account the inverse effect of the medium on the field. Our study is based on a numerical analysis of the Maxwell–Bloch equations. This analysis reveals that, as the concentration of two-level systems increases, an anomalous response of four-wave mixing arises. This response is associated with the appearance of a self-diffraction signal in the negative-delay region and also with a faster decay of coherence in the system.
A theoretical analysis is made of the self-diffraction of short light pulses in an induced amplitude-phase grating in a thin layer of resonant medium. Expressions describing the amplitudes (intensities) of the diffracted beams are derived and analyzed. It is shown that the nature of the amplitude modulation of the light diffracted into small angles depends strongly on the amplitudes of the input pulses. It is demonstrated that transient self-diffraction of short pulses can be used in estimating the dipole moment of a saturable transition.