Stable three-dimensional optical solitons supported by competing quadratic and self-focusing cubic nonlinearities

被引：21

作者：

Mihalache, D.

Mazilu, D.

Malomed, B. A.

Lederer, F.

Crasovan, L. -C.

Kartashov, Y. V.

Torner, L.

机构：

[1] ICFO Inst Ciencies Foton, Barcelona 08860, Spain

[2] Horia Hulubei Natl Inst Phys & Nucl Engn IFINHH, Bucharest 077125, Romania

[3] Univ Jena, Inst Solid State Theory & Theoret Opt, D-077743 Jena, Germany

[4] Tel Aviv Univ, Fac Engn, Dept Interdisciplinary Studies, IL-69978 Tel Aviv, Israel

来源：

PHYSICAL REVIEW E | 2006年 / 74卷 / 04期

关键词：

D O I：

10.1103/PhysRevE.74.047601

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We show that the quadratic (chi((2))) interaction of fundamental and second harmonics in a bulk dispersive medium, combined with self-focusing cubic (chi((3))) nonlinearity, give rise to stable three-dimensional spatiotemporal solitons (STSs), despite the possibility of the supercritical collapse, induced by the chi((3)) nonlinearity. At exact phase matching (beta=0), the STSs are stable for energies from zero up to a certain maximum value, while for beta not equal 0 the solitons are stable in energy intervals between finite limits.

引用

页数：4

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