1. Dispersion-Engineered Metasurface Doublet Design for Broadband and Wide-Angle Operation in the Visible Range
- Author
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Junhyeok Jang, Gun-Yeal Lee, Youngjin Kim, Changhyun Kim, Yoonchan Jeong, and Byoungho Lee
- Subjects
Aberration correction ,flat optics ,metalens ,metasurface ,Applied optics. Photonics ,TA1501-1820 ,Optics. Light ,QC350-467 - Abstract
The development of a metasurface lens, which represents a flat optical element with subwavelength thickness, holds the potential for miniaturizing imaging systems. Nevertheless, the presence of aberrations poses a significant challenge for achieving optimal imaging quality out of it. Moreover, its practical utilization in cameras and wearable devices necessitates simultaneous correction of monochromatic and chromatic aberrations. We here propose a framework to design multi-layered, dispersion-engineered metasurfaces, which is capable of correcting monochromatic and chromatic aberrations in a simultaneous manner. Based on the scheme, we numerically demonstrate a novel metasurface doublet that gives rise to significant improvement in correction of both monochromatic and chromatic aberrations. The designed lens has a field-of-view of 50° and operates in the broadband visible region from 450 to 650 nm.
- Published
- 2023
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