Nonlinear supratransmission as a fundamental instability

J. Leon (1)

1 PMT - Laboratoire de Physique Mathématique et Théorique

The nonlinear supratransmission is the property of a nonlinear system possessing a natural forbidden band gap to transmit energy of a signal with a frequency in the gap by means of generation of nonlinear modes (gap solitons). This process is shown to result from a generic instability of the evanescent wave profile generated in a nonlinear medium by the incident signal.

Mots clés: Nonlinear; Instability; Boundary; Supratransmission

Domaines: Formation de Structures et Solitons [nlin.PS]

J. Leon. Nonlinear supratransmission as a fundamental instability. Physics Letters A, 2003, 319 (1-2), pp.130-136. ⟨10.1016/j.physleta.2003.10.012⟩. ⟨hal-00178219⟩