Chromatic aberrations are a primary limiting factor in thin, high-quality imaging systems. Recent advances in nanoscale manufacturing, however, have enabled the creation of metasurfaces: ultra-thin optical components with sub-wavelength features that can locally manipulate the wavefront phase. Meanwhile, there has been renewed interest in GRadient-INdex (GRIN) lenses due to the extended degrees of design freedom they offer. When combined, these two technologies can provide unparalleled imaging system performance while realizing drastic reductions in size, weight, and power. Through paraxial theory and full ray tracing we produce a lens singlet that can achieve three-color (apochromatic) correction by employing a metasurface-augmented GRIN. This apochromatic singlet has the potential for application in high-quality optical systems.

中文翻译：

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复曲面增强型GRIN透镜可实现复消色差单峰

色差是薄，高质量成像系统中的主要限制因素。但是，纳米级制造的最新进展已实现了超表面的创建：具有亚波长特征的超薄光学组件可以局部控制波前相位。同时，由于GRadient-INDex（GRIN）镜片提供了更大的设计自由度，因此引起了人们的新兴趣。当结合使用时，这两种技术可以提供无与伦比的成像系统性能，同时实现尺寸，重量和功率的大幅降低。通过近轴理论和全光线追踪，我们生产出了透镜单重态，通过使用超表面增强型GRIN可以实现三色（复消色差）校正。这种复消色差单重态有潜力应用于高质量的光学系统中。