@article {2343,
	title = {Linear chain of weakly coupled defects in a three-dimensional phononic crystal: A model acoustic waveguide},
	journal = {Physical Review B},
	volume = {74},
	year = {2006},
	pages = {172302 (4 pages)},
	abstract = {<p>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.</p>},
	author = {R. Sainidou and N. Stefanou and A. Modinos}
}
