Slow and Immobile Solitons in Quadratic Media

摘要: It is well known what solitons can be excited in wide range of nonlinear media due to the balance dispersive and effects [1]. The properties with third-order nonlinearity were studied very intensive. In particular, phenomenon slow immobile forming near bounds nontransmission bands medium complex dispersion was discovered theoretically numerically [2, 3, 4]. This based on bound frequency shift self-action effects. input signal forbidden frequencies splits into non-dumping solitons. named “nonlinear tunneling” [2]. Solitons that propagate are as “gap solitons”.