Evolution of polarization in an inhomogeneous isotropic medium

Petrov, Nikolai I.

doi:10.1134/1.558380

Cited by 17 publications

(22 citation statements)

References 16 publications

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“…In the paraxial approximation the Maxwell equations can be reduced to the equivalent time-independent Schrodinger equation [29]. In [16,17], a similar approach is used to obtain a parabolic equation for a two-component vector field. Since the paraxial beam propagates in a direction close to the z-axis, the conditions ∂ 2 E/∂z 2 << k∂E/∂z ≈ ∂ 2 E/∂x 2 ≈ ∂ 2 E/∂y 2 are valid.…”

Section: D Polarizationmentioning

confidence: 99%

“…In [16,17], the quantum-mechanical formalism of coherent states was used to study the evolution of polarization in a multimode isotropic graded-index medium. It is shown that depolarization of light in an isotropic graded-index medium occurs due to the effects of diffraction and spin-orbit interaction, and this mechanism manifests itself for radiation with linear and circular polarization.…”

Section: Introductionmentioning

confidence: 99%

“…One of the goals of this review is to present a general picture of the polarizationdependent light transmission through optical fibers associated with the spin-orbit interaction. Recently, the effects of spin-orbit interaction in graded-index (GRIN) media have been of great interest [16,17,[21][22][23][24]. In [25][26][27][28], the propagation of polarized twisted light beams in a cylindrical graded-index optical fiber is investigated by solving the three-component field Maxwell equations.…”

Section: Introductionmentioning

confidence: 99%

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Depolarization of Light in Optical Fibers: Effects of Diffraction and Spin-Orbit Interaction

Petrov

2021

Fibers

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Polarization is measured very often to study the interaction of light and matter, so the description of the polarization of light beams is of both practical and fundamental interest. This review discusses the polarization properties of structured light in multimode graded-index optical fibers, with an emphasis on the recent advances in the area of spin-orbit interactions. The basic physical principles and properties of twisted light propagating in a graded index fiber are described: rotation of the polarization plane, Laguerre–Gauss vector beams with polarization-orbital angular momentum entanglement, splitting of degenerate modes due to spin-orbit interaction, depolarization of light beams, Berry phase and 2D and 3D degrees of polarizations, etc. Special attention is paid to analytical methods for solving the Maxwell equations of a three-component field using perturbation analysis and quantum mechanical approaches. Vector and tensor polarization degrees for the description of strongly focused light beams and their geometrical interpretation are also discussed.

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Section: D Polarizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Depolarization of Light in Optical Fibers: Effects of Diffraction and Spin-Orbit Interaction

Petrov

2021

Fibers

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“…Results obtained may be of great importance in biology and medicine, optical recording and microscopy, and could be exploited in various applications such as novel endoscopes, sensors and imaging systems. In [88][89][90] the polarization effects at the propagation of light in a multimode graded-index optical fiber are considered using the method of coherent states. In [91][92][93][94] these methods were used for consideration of the effects of spin-orbit interaction of light in optical waveguides with a cylindrical symmetry.…”

Section: Propagation Of Light In Inhomogeneous Mediamentioning

confidence: 99%

“…It was shown, that the coherent properties of light can be controlled with the help of variation of the laws of longitudinal inhomogeneity. Quantumtheoretical methods were applied also for investigation of the effects of nonparaxiality [83][84][85][86][87] and depolarization [88][89][90] of radiation in graded-index media. In [85] the nonparaxial focusing of wave beams in a graded-index medium was studied.…”

Section: Propagation Of Light In Inhomogeneous Mediamentioning

confidence: 99%

Contribution of Samara Scientists Into Computer Optics Journal Development

Данилов

Petrov

2016

Collection of Selected Papers of the II International Conference on Information Technology and Nanotechnology

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Beam shift in a graded-index optical fiber

Petrov¹

2013

J. Opt.

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The influence of polarization of a light beam on its geometrical characteristics at propagation in a two-dimensional isotropic graded-index medium using the methods of coherent states is investigated. In a paraxial approximation taking into account the second order terms in a vector wave equation, the expressions for the trajectory and width of linearly and circularly polarized radiation are obtained. It is shown that the circular polarization leads to the rotation of the propagation plane of the meridional rays and additional rotation of sagittal rays, depending on the axial shift of the incident beam. Both circular and linear polarizations result in oscillations of the width of a light beam propagating in a graded-index fiber. In the case of linearly polarized light, the initially symmetric beam becomes elliptical with broadening in the direction of the polarization plane. Beam shifts or corrections with respect to geometrical optics caused by the scalar (nonparaxiality) and vector (polarization) wave effects are investigated.

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Evolution of polarization in an inhomogeneous isotropic medium

Cited by 17 publications

References 16 publications

Depolarization of Light in Optical Fibers: Effects of Diffraction and Spin-Orbit Interaction

Depolarization of Light in Optical Fibers: Effects of Diffraction and Spin-Orbit Interaction

Contribution of Samara Scientists Into Computer Optics Journal Development

Beam shift in a graded-index optical fiber

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