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dc.contributor.authorSantagiustina, Marcoen_US
dc.contributor.authorHernández-García, Emilioen_US
dc.contributor.authorSan Miguel, Maxien_US
dc.contributor.authorScroggie, Andrew J.en_US
dc.contributor.authorOppo, Gian-Luca-
dc.date.accessioned2009-07-14T09:30:25Z-
dc.date.available2009-07-14T09:30:25Z-
dc.date.issued2003-02-13en_US
dc.identifier.citationPhysical Review E 65(3): 036610 (2002)en_US
dc.identifier.issn1539-3755-
dc.identifier.urihttp://hdl.handle.net/10261/14844-
dc.description14 pages, 15 figures, 2 appendices.-- PACS nr.: 42.65.Sf.-- ArXiv pre-print available at: http://arxiv.org/abs/physics/0111023-
dc.description.abstractPrevious studies of lasers and nonlinear resonators have revealed that the polarization degree of freedom allows for the formation of polarization patterns and novel localized structures, such as vectorial defects. Type- II optical parametric oscillators are characterized by the fact that the down-converted beams are emitted in orthogonal polarizations. In this paper we show the results of the study of pattern and defect formation and dynamics in a type-II degenerate optical parametric oscillator, for which the pump field is not resonated in the cavity. We find that traveling waves are the predominant solutions and that the defects are vectorial dislocations that appear at the boundaries of the regions where traveling waves of different phase or wave-vector orientation are formed. A dislocation is defined by two topological charges, one associated with the phase and another with the wave-vector orientation. We also show how to stabilize a single defect in a realistic experimental situation. The effects of phase mismatch of nonlinear interaction are finally considered.en_US
dc.description.sponsorshipThis work has been supported by the European Commission through the Project QSTRUCT (ERB FMRX-CT96-0077) and QUANTIM (IST-2000-26019). Financial support is also acknowledged from EPSRC (UK) (Grant Nos. GR/M 19727 and GR/M 31880), SHEFC (UK) (Grant No. VIDEOS), and MCyT (Spain) (Project BMF2000-1108). G.-L.O. acknowledges support from SGI.-
dc.format.extent2373 bytes-
dc.format.extent213769 bytes-
dc.format.mimetypetext/plain-
dc.format.mimetypeapplication/pdf-
dc.language.isoengen_US
dc.publisherAmerican Physical Society-
dc.rightsopenAccessen_US
dc.subject[PACS] Dynamics of nonlinear optical systems; optical instabilities, optical chaos and complexity, and optical spatio-temporal dynamics-
dc.titlePolarization patterns and vectorial defects in type-II optical parametric oscillatorsen_US
dc.typeartículoen_US
dc.identifier.doi10.1103/PhysRevE.65.036610-
dc.description.peerreviewedPeer revieweden_US
dc.relation.publisherversionhttp://dx.doi.org/10.1103/PhysRevE.65.036610-
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