Quadratic solitons in media with negative refractive index

A. I. Maĭmistov, I. R. Gabitov, E. V. Kazantseva

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


The propagation of pulses of the pump and its second harmonic in a quadratically nonlinear medium whose linear properties are characterized by a negative refractive index at the pump frequency and by a positive refractive index at the harmonic frequency is considered theoretically. In the case of a low intensity of the interacting waves, the pump and second-harmonic pulses propagate in the opposite directions, but sufficiently powerful pulses can form a simulton-a solitary two-frequency wave propagating in a certain direction as a single whole. Solutions to a set of equations are found which describe the steady-state propagation of a solitary wave and of a nonlinear periodic (cnoidal) wave.

Original languageEnglish
Pages (from-to)90-97
Number of pages8
JournalOptics and Spectroscopy
Issue number1
Publication statusPublished - Jan 2007
Externally publishedYes


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