Resonant generation of electromagnetic modes in nonlinear electrodynamics: Classical approachстатьяИсследовательская статья
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Дата последнего поиска статьи во внешних источниках: 26 января 2022 г.
Аннотация:The paper explores a theoretical possibility of resonant amplification of electromagnetic modes generated by a nonlinear effect in Euler-Heisenberg electrodynamics. Precisely, we examine the possibility of the amplification for the third harmonics induced by a single electromagnetic mode in a radio-frequency cavity as well as the generation of the signal mode of combined frequencies induced by two pump modes (ω1 and ω2) in the cavity. Solving inhomogeneous wave equations for the signal mode, we formulate two resonant conditions for a cavity of arbitrary shape and apply the obtained formalism to linear and rectangular cavities. We explicitly show that the third harmonics as well as the mode of combined frequency 2ω1+ω2 are not resonantly amplified whereas the signal mode with frequency 2ω1−ω2 is amplified for a certain cavity geometry.