Abstract: Electromagnetic energy collecting devices are described wherein a plasmonic near field resonating system absorbs light and transfers the light energy by plasmonic near field resonance to a semiconducting material that then separates the charge. The charge is then transported out of the device, converting light energy into electrical energy. The multiple nanoparticle plasmonic resonators are closely coupled with an electrically-conductive layer that creates electromagnetic resonances that provide for near perfect absorption of the incoming light. The device can be used both as an optical sensor and as a photovoltaic electromagnetic energy to electrical energy converter.

Abstract: A system for collecting electromagnetic energy is provided. The system can include one or more electromagnetic energy collection devices. An individual device comprises a first electrically conductive layer adjacent to a semiconductor layer. The first electrically conductive layer forms a Schottky barrier to charge flow at an interface between the first electrically conductive layer and the semiconductor layer. A second electrically conductive layer is disposed adjacent to the semiconductor layer and away from the first electrically conductive layer. The second electrically conductive layer forms an ohmic contact with the semiconductor layer. Upon exposure of the device to electromagnetic energy, the first electrically conductive layer generates localized surface plasmon resonances that resonantly interact with the second electrically conductive layer, providing near perfect absorption of light.

Abstract: In a method of video image motion compensation a plurality of motion vectors are derived by techniques such as phase correlation between pairs of images. In order to produce a set of motion vectors which can be used to define substantially all the motions in an input image, sets of vectors are derived from comparisons with preceding and succeeding images and are then combined to produce a set of vectors for assignment to an input image. Once the set of vectors has been derived they are assigned to the input image from where they can be projected to produce a desired output image. The vectors are assigned to individual elemental areas of the image and certain elemental areas have two (or more) vectors assigned to them.