par Tlidi, Mustapha ;Mandel, Paul
Référence Physical Review Letters, 83, 24, page (4995-4998)
Publication Publié, 1999
Article révisé par les pairs
Résumé : By using an order parameter description of the type-II second harmonic generation, we prove analytically that different 3D periodic solutions exist and have overlapping domains of stability. The stable periodic solutions are lamellae, 3D hexagons, and a body-centered cubic pattern. The coexistence of periodic and homogeneous solutions leads to localized structures such as light drops and cylinders which are found numerically.

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