“…Nowadays, besides their natural application as filters in particular under full band gap conditions, PhCs see a number of applications: optical fibers (Birks et al, 1997;Zhao et al, 2010), vertical cavity surface emitting lasers (Yokouchi et al, 2003), high reflection coatings, temperature sensors (Song et al, 2006), high efficiency solar cells (Bermel et al, 2007), electric field detectors (Song & Proietti Zaccaria, 2007), non-linear analysis (Malvezzi et al, 2002;Malvezzi et al, 2003), just to name a few. Many are the techniques for the fabrication of PhCs, for example by means of focused-ion beam (Cabrini et al, 2005), two-photon fabrication (Deubel et al, 2004), laser-interference (Proietti Zaccaria et al, 2008a) or waver-fusion techniques (Takahashi et al, 2006). Here we shall focus on the role that PhCs can play for another exciting discipline known as Plasmonics.…”