Linear chain of weakly coupled defects in a three-dimensional phononic crystal: A model acoustic waveguide

Sainidou, R; Stefanou, N; Modinos, A

dc.contributor.author	Sainidou, R	en
dc.contributor.author	Stefanou, N	en
dc.contributor.author	Modinos, A	en
dc.date.accessioned	2014-03-01T01:24:34Z
dc.date.available	2014-03-01T01:24:34Z
dc.date.issued	2006	en
dc.identifier.issn	1098-0121	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17332
dc.subject	Three Dimensional	en
dc.subject.classification	Physics, Condensed Matter	en
dc.subject.other	BAND-GAP MATERIALS	en
dc.title	Linear chain of weakly coupled defects in a three-dimensional phononic crystal: A model acoustic waveguide	en
heal.type	journalArticle	en
heal.identifier.primary	10.1103/PhysRevB.74.172302	en
heal.identifier.secondary	http://dx.doi.org/10.1103/PhysRevB.74.172302	en
heal.identifier.secondary	172302	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	We discuss acoustic waveguiding through weakly coupled defects along a line in a three-dimensional phononic crystal which possesses an absolute frequency gap. A chain of appropriately chosen defect cells induces modes of the elastic field over a narrow band of frequencies within the gap. We introduce a model of this band in the manner of a tight-binding description of defect bands in semiconductors and demonstrate the applicability of this model through a specific example of phononic crystal: a bubbly liquid. This allows an exact, practically analytic solution and a deeper physical insight into the processes involved. © 2006 The American Physical Society.	en
heal.publisher	AMERICAN PHYSICAL SOC	en
heal.journalName	Physical Review B - Condensed Matter and Materials Physics	en
dc.identifier.doi	10.1103/PhysRevB.74.172302	en
dc.identifier.isi	ISI:000242409000011	en
dc.identifier.volume	74	en
dc.identifier.issue	17	en