Wave collapse in bulk media with quadratic and cubic responses

被引：8

作者：

Bang, O ^{[1
]}

Berge, L

Rasmussen, JJ

机构：

[1] Australian Natl Univ, Ctr Opt Sci, Res Sch Phys Sci & Engn, Australian Photon Cooperat Res Ctr, Canberra, ACT 0200, Australia

[2] CEA, Ctr Etud Limeil Valenton, F-94195 Villeneuve St Georges, France

[3] Riso Natl Lab, Opt & Fluid Dynam Dept, DK-4000 Roskilde, Denmark

来源：

OPTICS COMMUNICATIONS | 1998年 / 146卷 / 1-6期

关键词：

D O I：

10.1016/S0030-4018(97)00520-8

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The mutual influence of quadratic and cubic nonlinearities on the propagation of coupled fundamental and second harmonic waves in optical media is studied. Particular attention is paid to the self-focusing of CW Gaussian beams in bull media. Such beams are found to self-focus until collapse, whenever their power exceeds a threshold value. We determine this threshold power and find its dependence on the strength of the quadratic and cubic nonlinearities and on the phase mismatch. (C) 1998 Elsevier Science B.V.

引用

页码：231 / 235

页数：5

共 17 条

[1] Bright spatial solitons in defocusing Kerr media supported by cascaded nonlinearities [J].

Bang, O ;

Kivshar, YS ;

Buryak, AV .

OPTICS LETTERS, 1997, 22 (22) :1680-1682

[2] Dynamical equations for wave packets in materials with both quadratic and cubic response [J].

Bang, O .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1997, 14 (01) :51-61

[3] Self-focusing and solitonlike structures in materials with competing quadratic and cubic nonlinearities [J].

Berge, L ;

Bang, O ;

Rasmussen, JJ ;

Mezentsev, VK .

PHYSICAL REVIEW E, 1997, 55 (03) :3555-3570

[4] FORMATION OF STABLE SOLITONS IN QUADRATIC NONLINEAR MEDIA [J].

BERGE, L ;

MEZENTSEV, VK ;

RASMUSSEN, JJ ;

WYLLER, J .

PHYSICAL REVIEW A, 1995, 52 (01) :R28-R31

[5] OPTICAL SOLITONS SUPPORTED BY COMPETING NONLINEARITIES [J].

BURYAK, AV ;

KIVSHAR, YS ;

TRILLO, S .

OPTICS LETTERS, 1995, 20 (19) :1961-1963

[6] SELF-TRAPPING OF LIGHT-BEAMS AND PARAMETRIC SOLITONS IN DIFFRACTIVE QUADRATIC MEDIA [J].

BURYAK, AV ;

KIVSHAR, YS ;

STEBLINA, VV .

PHYSICAL REVIEW A, 1995, 52 (02) :1670-1674

[7] Spatial solitons and induced Kerr effects in quasi-phase-matched quadratic media [J].

Clausen, CB ;

Bang, O ;

Kivshar, YS .

PHYSICAL REVIEW LETTERS, 1997, 78 (25) :4749-4752

[8] ON DIFFRACTION AND DISPERSION EFFECT ON 3 WAVE INTERACTION [J].

KANASHOV, AA ;

RUBENCHIK, AM .

PHYSICA D, 1981, 4 (01) :122-134

[9]

KARAMZIN YN, 1976, SOV PHYS JETP, V41, P414

[10] COUPLED SOLITONS IN WAVE-GUIDES WITH 2ND-ORDER AND 3RD-ORDER NONLINEARITIES [J].

KARPIERZ, MA .

OPTICS LETTERS, 1995, 20 (16) :1677-1679

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