2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/84454The tunneling time is here investigated by means of an electromagnetic model, for a system where a gap, between two parallel planes, acts as a classically-forbidden region for an impinging pulse with incidence angle larger than the critical angle. In all cases of frustrated total reflection we obtain a superluminal behavior both for phase and group delays.OpticsTunneling time in the case of frustrated total reflectiontext