With a waveguide coupled surface plasmon - polariton - photodetector, and method for detecting a light signal

摘要

An apparatus, comprising:a metal - semiconductors - metal - (metal - semiconductor - metal, msm) - photodetector, comprising:a first electrode;a second electrode;a between the first electrode and the second electrode a layered semiconductor material, anda waveguide, in order to provide a light signal in the shafts carrying conductors mode by a jacket material of the msm - photodetector is physically separated, wherein the waveguide relative to the first electrode and to the second electrode is so placed that the first electrode between the waveguide and the semiconductor material is;the msm - photodetector with the waveguide is not - aligned in parallel; andthe first and second electrodes and the semiconductor material of the msm - photodetector are configured to the light signal of wave conductor mode in surface plasmon - polariton - (surface plasmon polariton, spp) to convert - mode.