This paper illustrates how the penetration of electromagnetic waves in lossy media\nstrongly depends on the waveform and not only on the media involved. In particular, the so-called\ninhomogeneous plane waves are compared against homogeneous plane waves illustrating how the\nfirst ones can generate deep penetration effects. Moreover, the paper provides examples showing how\nsuch waves may be practically generated. The approach taken here is analytical and it concentrates\non the deep penetration conditions obtained by means of incident inhomogeneous plane waves\nincoming from a lossless medium and impinging on a lossy medium. Both conditions and constraints\nthat the waveforms need to possess to achieve deep penetration are analysed. Some results are\nfinally validated through numerical computations. The theory presented here is of interest in view of\na practical implementation of the deep penetration effect.
Loading....