The invention provides systems, methods, and computer program products for the display of product information in or about a store. The linked articles comprise a first link matrix and a second link matrix comprising a first portion of the article and a second portion of the article, respectively. A laser beam emitted from the surface emitting laser is reflected by a mirror surface of the reflecting converging element and is converged on a plasmon probe formed on a bottom surface of the transparent plate. The MSC sends a call release message to one or more nodes within the network.