LIGHT EMITTING STRUCTURES AND SYSTEMS ON THE BASIS OF GROUP IV MATERIAL(S) FOR THE ULTRAVIOLET AND VISIBLE SPECTRAL RANGES

摘要

Material structures, systems and devices are disclosed. The material structures are active materials, which are able to emit UV/visible light under excitation by bias, by light beam or by electron beam. The input unit is a source of voltage/current or a source of light or a source of electron beam. The active unit is a material structure containing one or more layers of the described materials. The system may include a passive unit such as a ring resonator, a waveguide, coupler, grating or else. Additional units such as a control unit, readout unit or else may be also incorporated.;The distinguished characteristic of the present invention is that the UV or visible emission from the described structures cannot happen without the presence of at least one of the following quasi-particles: surface plasmons, surface plasmon polaritons, bulk plasmons and/or bulk plasmon polaritons. These quasi-particles assist the UV and the visible light emission.