Computer simulation for fabricating a light-emitting device

A method of manufacturing a light-emitting device, comprising:

• forming a light-emitting element;
• performing a simulation of a metasurface by a computer, comprising:
• determining a deflection direction and a deflection angle;
• determining a supercell period length based on the deflection angle and a light wavelength of the light-emitting element;
• establishing a metasurface model of the metasurface, wherein the metasurface model comprises a substrate and a plurality of unit cells defined over the substrate, each of the unit cells comprises a meta-atom rod disposed on the substrate, the unit cells each are associated with a plurality of phase compensation values, and the phase compensation values of the unit cells are spatially arranged along the deflection direction, wherein each phase compensation value represents a phase difference, in degrees, between light entering the meta-atom rod and light leaving the meta-atom rod relative to a reference, and corresponds to a width of the meta-atom rod;
• setting a light source of the light wavelength in the metasurface model;
• adjusting the phase compensation values of the unit cells and the metasurface model to simulate a plurality of transmittances with respect to different phase compensation values in the metasurface model;
• and
• selecting widths of the meta-atom rods corresponding to the phase compensation values at a peak of the transmittances as a plurality of processing parameters of the metasurface;
• forming the metasurface based on the processing parameters;
• and
• disposing the metasurface on a light-emitting side of the light-emitting element.