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dc.contributor.author정영대-
dc.date.accessioned2016-08-26T00:43:26Z-
dc.date.available2016-08-26T00:43:26Z-
dc.date.issued2015-03-
dc.identifier.citationPHYSICS LETTERS A, v. 379, Page. 676-679en_US
dc.identifier.issn0375-9601-
dc.identifier.issn1873-2429-
dc.identifier.urihttp://www.sciencedirect.com/science/article/pii/S0375960114012717-
dc.identifier.urihttp://hdl.handle.net/20.500.11754/22778-
dc.description.abstractWe find the existence and stability conditions of semi-infinite gap solitons in photorefractive media with parity and time (PT) reversal symmetric complex optical lattices. When the strength of the gain/loss term of complex potential is below the critical value, where the PT-symmetry of the system is unbroken, both the finite and semi-infinite bandgap solitons can exist. The dynamical propagation, Vakhitov-Kolokolov (VK) stability criterion, and linear perturbation stability analysis confirm the stability of the semi-infinite bandgap solitons. All gap solitons in the finite bandgap are found to be dynamically unstable even though they satisfy the VK criterion for stability. We reveal that for the complex potential strength above the critical value only unstable semi-infinite bandgap solitons exist due to the presence of complex propagation constant as a result of the broken PT-symmetry. (C) 2014 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipBasic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Educationen_US
dc.language.isoenen_US
dc.publisherELSEVIER SCIENCE BVen_US
dc.subjectCOMPETING NONLINEARITYen_US
dc.subjectSPATIAL SOLITONSen_US
dc.subjectCRYSTALSen_US
dc.subjectSPECTRAen_US
dc.titleGap solitons in photorefractive medium with PT-symmetric optical latticesen_US
dc.typeArticleen_US
dc.relation.volume379-
dc.identifier.doi10.1016/j.physleta.2014.12.031-
dc.relation.page676-679-
dc.relation.journalPHYSICS LETTERS A-
dc.contributor.googleauthorHong, Woo-Pyo-
dc.contributor.googleauthorJung, Young-Dae-
dc.relation.code2015003301-
dc.sector.campusS-
dc.sector.daehakGRADUATE SCHOOL[S]-
dc.sector.departmentDEPARTMENT OF BIONANOTECHNOLOGY-
dc.identifier.pidydjung-
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GRADUATE SCHOOL[S](대학원) > BIONANOTECHNOLOGY(바이오나노학과) > Articles
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