Three-Dimensional Optical Crystals and Localized Structures in Cavity Second Harmonic Generation
- 13 December 1999
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 83 (24) , 4995-4998
- https://doi.org/10.1103/physrevlett.83.4995
Abstract
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.Keywords
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