Design of achromatic surface microstructure for near-eye display with diffractive waveguide
نویسندگان
چکیده
Dispersion problem has always constrained the development of see-through near-eye displays with diffractive waveguide. Here, we propose a design method and optical systems for achromatic surface microstructure composed with a triple-carved-sub-grating. The triple-carved-sub-grating with specified period is designed based on rigorous coupled wave theory, corresponding to Red, Green and Blue (RGB) wavelengths, respectively, with diffraction efficiencies of ±1 orders reach 47.5% under TE polarization. The surface microstructure with period of 18.9 m is
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