Extraordinary Optical Transmission(EOT) phenomena of light through a nanohole array like Fig. 1 was rst observed by T. Ebbesen et al. in 1998. Since then, lots of researches try to explain the mechanism behind such phenomena, most of which attribute it to the Surface Plasmon Polariton(SPP).
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| Fig. 1, Nano-hole array |
In a series of researches by H.T. Liu, P. Lalanne, et al[1, 4, 2], they are trying to build up a `microscopic' theory to explain the EOT phenomena, where each nano-hole is considered to be a elementary scatter, like the case in Fig. 2.
According to their analysis, not only SPP but also the so-called `qusi-Cylindrical wave' also plays an important role. Their theory is built on a fundamental problem:the radiation of dipole near an interface, which they named the `line source problem'. However, even the physical picture of the role of quasi-CW contribution has been widely cited, there are some obvious mathematical errors in their deviation of the line-source problem. In this document, I try to figure those 'messes' out and make a revisit to the classical problem: dipole radiation near a lossy interface based the previous work of W. Lucas, et al. and L. Novotny, et al. .
The document is provided in the link: Dipole radiation near interface. I hope the readers would find it useful. Request for the document can also be sent to my contact info. given in my CV.
