The bulk macroscopic dielectric response of a disordered composite is calculated employing a large finite sample instead of an infinite one obtained by replicating a unit cell, as has usually been done. We explicitly account ...

We evaluate the local field effect for an Ag crystal within the "Swiss cheese" model employing different approximations for the intra-band screening. In this model the inter-band transitions are modeled through polarizable ...

The use of optical spectroscopies to study surfaces is hindered by the difficulty of disentangling bulk and surface contributions to the signal. According to Fresnel formulae, the a and p reflectances R of a semi-infinite ...