Study of the Dispersion Compensation Double-Layer Diffractive Optical Components Based on Metasurface and Grating, and Their Application in Augmented Reality Displays.
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| Title: | Study of the Dispersion Compensation Double-Layer Diffractive Optical Components Based on Metasurface and Grating, and Their Application in Augmented Reality Displays. |
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| Authors: | Zhang, Jiahang1,2 (AUTHOR) zhangjiahang17@mails.ucas.ac.cn, Liu, Siqi1,2 (AUTHOR), Zhang, Wei1,2 (AUTHOR), Jiang, Sijia1 (AUTHOR), Ma, Ding1 (AUTHOR), Xu, Liang1 (AUTHOR), Yang, Mingyu1 (AUTHOR), Jiao, Qingbin1 (AUTHOR) jiaoqingbin@ciomp.ac.cn, Tan, Xin1,3 (AUTHOR) jiaoqingbin@ciomp.ac.cn |
| Source: | Materials (1996-1944). Nov2024, Vol. 17 Issue 21, p5291. 17p. |
| Subjects: | Diffraction gratings, Optical information processing, Optical elements, Augmented reality, Light elements |
| Abstract: | We employed a double-layer coupled diffractive optical element, based on metasurfaces and diffraction gratings, which exhibits wavefront modulation and chromatic dispersion compensation. Utilizing this double-layer coupled diffractive optical element in the optical information transmission process of a diffractive waveguide allows for the transmission of color image information using a single-layer waveguide structure. Our results demonstrate that, under the conditions of a field of view of 47° × 47°, an entrance pupil size of 2.9 × 2.9 mm2, and an exit pupil extension size of 8.9 mm, the uniformity of the brightness for each monochromatic field reached 85%, while the uniformity of color transmission efficiency exceeded 95%. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | We employed a double-layer coupled diffractive optical element, based on metasurfaces and diffraction gratings, which exhibits wavefront modulation and chromatic dispersion compensation. Utilizing this double-layer coupled diffractive optical element in the optical information transmission process of a diffractive waveguide allows for the transmission of color image information using a single-layer waveguide structure. Our results demonstrate that, under the conditions of a field of view of 47° × 47°, an entrance pupil size of 2.9 × 2.9 mm2, and an exit pupil extension size of 8.9 mm, the uniformity of the brightness for each monochromatic field reached 85%, while the uniformity of color transmission efficiency exceeded 95%. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 19961944 |
| DOI: | 10.3390/ma17215291 |
