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AssigneesImec Vzw, Katholieke Universiteit Leuven, KU LEUVEN R&D
InventorsNiels Verellen, Dmitry Kouznetsov, Pol Van Dorpe
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Example embodiments relate to methods and devices for generating (quasi-) periodic interference patterns. One embodiment includes a method for generating an interference pattern using multi-beam interference of electromagnetic radiation. The method includes computing a set of grid points in a complex plane representing a grid with a desired symmetry. The method also includes selecting a radius of a virtual circle. Additionally, the method includes selecting a set of grid points in the complex plane that lies on the virtual circle centered around a virtual center point. Further, the method includes associating an argument of each grid point of the selected set of grid points in the complex plane with a propagation direction of plane waves or quasi plane waves or parallel wave fronts. In addition, the method includes obtaining the interference pattern that is a superposition of the plane waves or quasi plane waves or parallel wave fronts.
A method comprising:
A device comprising a plurality of electromagnetic radiation input ports configured to receive input radiation beams and cause the input radiation beams to interfere at a center, which generates an interference pattern, and wherein causing the input radiation beams to interfere at the center comprises:
Dependencies are inferred from the claim text.