Optical interference arrangement and method for the emission of electromagnetic radiation in a photonic crystal or quasicrystal

摘要

Optical interference arrangement for the emission of electromagnetic radiation in a photonic crystal or quasicrystal comprising:the photonic crystal or quasicrystal (1) andan in-coupling structure (2), which is designed so arranged and aligned is that, due to it in a at the surface and / or in the interior of the photonic crystal or quasi crystal (1) arranged entry area (3) of the photonic crystal or quasi crystal (1) a plurality of electromagnetic field contributions (4a, 4b, 4c) in a predefined interference pattern (5) can be brought into interference,wherein the in-coupling structure (2) comprises a plurality of structure part sections to the photonic crystal or quasicrystal (1) are structurally and adjacent to the photonic crystal or quasicrystal (1) are connected, and the thus formed, are arranged and orientated that, by means of a plurality of electromagnetic radiation fields or radiation field sections in the photonic crystal or quasicrystal (1) and can be applied as the plurality of electromagnetic field contributions (4a, 4b, 4c) can be brought to interference andthe in-coupling structure (2) with a plurality of outside of the photonic crystal or quasi crystal (1) arranged waveguides (8a, 8b, 8c) or a focusing optical system with a device for the production of complex interference pattern is coupled, is formed, andthe waveguides (8a, 8b, 8c) on the inlet region (3), the average extension of greater than or equal to 0,2 and less than or equal to 5 units of a grating constant of the periodic photonic crystal, run into or the focussing lens on the inlet region (3) is focused by means of this value.