Nonlinear normal modes in electrodynamic systems: A nonperturbative approach
- Authors: Kudrin A.V.1, Kudrina O.A.1, Petrov E.Y.1
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Affiliations:
- Lobachevsky University
- Issue: Vol 122, No 6 (2016)
- Pages: 995-1001
- Section: Atoms, Molecules, Optics
- URL: https://journals.rcsi.science/1063-7761/article/view/190317
- DOI: https://doi.org/10.1134/S1063776116060145
- ID: 190317
Cite item
Abstract
We consider electromagnetic nonlinear normal modes in cylindrical cavity resonators filled with a nonlinear nondispersive medium. The key feature of the analysis is that exact analytic solutions of the nonlinear field equations are employed to study the mode properties in detail. Based on such a nonperturbative approach, we rigorously prove that the total energy of free nonlinear oscillations in a distributed conservative system, such as that considered in our work, can exactly coincide with the sum of energies of the normal modes of the system. This fact implies that the energy orthogonality property, which has so far been known to hold only for linear oscillations and fields, can also be observed in a nonlinear oscillatory system.
About the authors
A. V. Kudrin
Lobachevsky University
Author for correspondence.
Email: kud@rf.unn.ru
Russian Federation, Nizhny Novgorod, 603950
O. A. Kudrina
Lobachevsky University
Email: kud@rf.unn.ru
Russian Federation, Nizhny Novgorod, 603950
E. Yu. Petrov
Lobachevsky University
Email: kud@rf.unn.ru
Russian Federation, Nizhny Novgorod, 603950
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