Bandgap lattices: Low index solitons and linear properties

Efremidis, NK; Hizanidis, K

dc.contributor.author	Efremidis, NK	en
dc.contributor.author	Hizanidis, K	en
dc.date.accessioned	2014-03-01T01:21:54Z
dc.date.available	2014-03-01T01:21:54Z
dc.date.issued	2005	en
dc.identifier.issn	1094-4087	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/16407
dc.subject	Indexation	en
dc.subject.classification	Optics	en
dc.subject.other	Band structure	en
dc.subject.other	Diffraction	en
dc.subject.other	Optical Kerr effect	en
dc.subject.other	Optical properties	en
dc.subject.other	Reflection	en
dc.subject.other	Waveguide components	en
dc.subject.other	Bandgap lattices	en
dc.subject.other	Linear properties	en
dc.subject.other	Nonlinear regime	en
dc.subject.other	Total internal reflection	en
dc.subject.other	Solitons	en
dc.title	Bandgap lattices: Low index solitons and linear properties	en
heal.type	journalArticle	en
heal.identifier.primary	10.1364/OPEX.13.010571	en
heal.identifier.secondary	http://dx.doi.org/10.1364/OPEX.13.010571	en
heal.language	English	en
heal.publicationDate	2005	en
heal.abstract	A new type of waveguide lattice that relies on the effect of bandgap guidance, rather than total internal reflection, in the regions between the waveguide defects is proposed. Two different setting, for low index and high index defects are suggested. We analyze the linear bandgap and diffraction properties of such lattices. In the nonlinear regime the Kerr effect can counteract diffraction leading to the formation of gap lattice solitons. Interestingly enough, in the case of low index defects, stable soliton solutions are localized in the low index areas. This finding challenges the widely accepted idea that stable solitons can be sustained in high refractive index regions. In addition, in the case of high index defects, the coupling coefficient can become negative. Physical settings where the linear and nonlinear properties for bandgap lattices can be experimentally realized are presented. (c) 2005 Optical Society of America.	en
heal.publisher	OPTICAL SOC AMER	en
heal.journalName	Optics Express	en
dc.identifier.doi	10.1364/OPEX.13.010571	en
dc.identifier.isi	ISI:000234263000014	en
dc.identifier.volume	13	en
dc.identifier.issue	26	en
dc.identifier.spage	10571	en
dc.identifier.epage	10588	en