TUTCRIS - Tampereen teknillinen yliopisto

TUTCRIS

Self-trapping of scalar and vector dipole solitary waves in Kerr media

Tutkimustuotosvertaisarvioitu

Yksityiskohdat

AlkuperäiskieliEnglanti
Artikkeli043833
JulkaisuPhysical Review A
Vuosikerta83
Numero4
DOI - pysyväislinkit
TilaJulkaistu - 27 huhtikuuta 2011
OKM-julkaisutyyppiA1 Alkuperäisartikkeli

Tiivistelmä

We report solutions for expanding dipole-type optical solitary waves in two-dimensional Kerr media with the self-focusing nonlinearity, using exact analytical (Hirota) and numerical methods. Such localized beams carry intrinsic vorticity and exhibit symmetric shapes for both scalar and vector solitary modes. When vector beams are close to the scalar limit, simulations demonstrate their stability over propagation distances exceeding 50 diffraction lengths. In fact, the continuous expansion helps the vortical beams avoid the instability against the splitting, collapse, or decay, making them "convectively stable" patterns.

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