Search

Photon switches of a new type, based on semiconductor nanostructures have been developed. It reveals universal pure optical switches. Application of these switches lies in a field of systems of optical processing of information, optical calculating devices, totally optical communication lines with optical addressing of informational signals etc . The switches display high switching frequency (up to 106 cycL/sec), large modulation amplitude, function under weak controlling optical signal with power densities I

The paper concerns the development of a new type of semiconductor detectors based on wide-gap insulating crystals, which are not polarized during the registration of intensive nuclear radiation, x-ray or electromagnetic waves. The detectors offered allow simultaneous registration of the shape and intensity and energy (doze) of radiation as well. I.e. they are detectors-dozemeters of radiations, reveals linear lux-ampere characteristics in a wide range of radiation intensities, are highly sensitive and stable under radiation. Detectors could be prepared on the basis of various insulating crystals with a gap width 2 - 6 eV.

A possibility of a new class of optoelectronic image correlator design on the base of the novel light controlled photodetector is discussed. The light controlled photodetector was proposed earlier. The correlator operates in quasi-real time, i.e. with the speed of the input images to be processed. The distinguished feature of the correlator is the parallel calculation of the two-dimensional mutual correlation function of the analyzed image directly in the structure of the light controlled photodetector. Owing to this, the high operation speed is provided. Experimental results confirming the possibility of proposed image correlator realization are presented. The possibility of designing the correlator with image input on the base of LC SLM with electronic addressing and on the base of light emission diode matrix is proposed. In the latter case the correlator can be realized as a chip. The proposed correlator can be used in the intelligence systems of technical vision.