Detectors of angular shifts and light polarizers operation of which is based on the effect of surface plasmon-polariton resonance

摘要

Abstract: One of the properties of surface plasmon-polariton (SPP) waves is that their excitation takes place only when appropriate relations between wave vectors of incident electromagnetic and SPP waves are fulfilled for a given frequency. In addition the incident wave has to be p-polarized. Due to the aforementioned peculiarities SPP waves may be applied for the development of some devices such as detectors of angular shifts, wide-band polarizers of light, or frequency discriminators. It is necessary to say that such devices have small sizes that offer an opportunity to use them with opto-electronic equipment. It is important to have an opportunity to induce SPP waves for different frequencies but the same relations exist between wave vector of incident electromagnetic and SPP waves. The technique of deposition of a monolayer of oriented molecules with necessary properties and thickness on the boundary of two mediums where SPP waves spread is used to get such an opportunity. !8