English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/7511
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Citado 21 veces en Web of Knowledge®  |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar otros formatos: Exportar EndNote (RIS)Exportar EndNote (RIS)Exportar EndNote (RIS)
Título

Coupled-mode theory for photonic band-gap inhibition of spatial instabilities

Autor Gomila, Damià ; Oppo, Gian-Luca
Palabras clave Coupled mode analysis
Photonic crystals
Pattern formation
Optical parametric oscillators
Nonlinear optics
Fecha de publicación 18-jul-2005
EditorAmerican Physical Society
Citación Physical Review E 72, 016614 (2005)
ResumenWe study the inhibition of pattern formation in nonlinear optical systems using intracavity photonic crystals. We consider mean-field models for singly and doubly degenerate optical parametric oscillators. Analytical expressions for the new (higher) modulational thresholds and the size of the band gap as a function of the system and photonic crystal parameters are obtained via a coupled-mode theory. Then, by means of a nonlinear analysis, we derive amplitude equations for the unstable modes and find the stationary solutions above threshold. The form of the unstable mode is different in the lower and upper parts of the band gap. In each part there is bistability between two spatially shifted patterns. In large systems stable wall defects between the two solutions are formed and we provide analytical expressions for their shape. The analytical results are favorably compared with results obtained from the full system equations. Inhibition of pattern formation can be used to spatially control signal generation in the transverse plane.
Descripción 8 pages, 8 figures.-- PACS nrs.: 42.65.Sf, 89.75.Kd, 05.65.+b, 42.70.Qs.-- ArXiv pre-print available: http://arxiv.org/abs/nlin/0503065v1
Versión del editorhttp://dx.doi.org/10.1103/PhysRevE.72.016614
URI http://hdl.handle.net/10261/7511
DOI10.1103/PhysRevE.72.016614
ISSN1539-3755
Aparece en las colecciones: (IFISC) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
PRE_72_016614.pdf409,73 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 



NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.