Energy Exchange at Degenerate Mixing of Four Fast TE2 Modes of a Thin Left-Handed Film on a Nonlinear Substrate

Frequency-degenerate mixing of forward and backward propagating fast modes is considered in a planar optical waveguide based on a thin left-handed film and a right-handed substrate exhibiting the Kerr effect. Nonlinear coupled-mode equations are solved for the intensities of these modes in the negle...

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Bibliographic Details
Published in:Journal of experimental and theoretical physics 2020-03, Vol.130 (3), p.387-396
Main Authors: Buller, A. S., Leonov, S. V., Litvinova, N. R., Litvinov, R. V.
Format: Article
Language:English
Subjects:
Atoms
Classical and Quantum Gravitation
Coupled modes
Elementary Particles
Exchanging
Luminous intensity
Molecules
Nonlinear equations
Optical waveguides
Optics
Particle and Nuclear Physics
Phase matching
Physics
Physics and Astronomy
Propagation modes
Quantum Field Theory
Relativity Theory
Solid State Physics
Substrates
Wave propagation
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Summary:Frequency-degenerate mixing of forward and backward propagating fast modes is considered in a planar optical waveguide based on a thin left-handed film and a right-handed substrate exhibiting the Kerr effect. Nonlinear coupled-mode equations are solved for the intensities of these modes in the neglect of the contributions of elementary processes that fail to satisfy the phase-matching condition. It is shown that the intramode self-action of four TE modes is accompanied by energy exchange between these modes. The efficiency of energy exchange varies periodically along the propagation direction of modes, thus leading to the inversion of the intensities of forward and backward propagating light fields on the interaction half-period.
ISSN:1063-7761
1090-6509
DOI:10.1134/S1063776120020119