Large-scale RGB-achromatic metalens for virtual reality and augmented reality

Yao-Wei Huang^1*

¹Department of Photonics, National Yang Ming Chiao Tung University, Hsinchu, Taiwan

* Presenter:Yao-Wei Huang, email:ywh@nycu.edu.tw

In this talk, I will report our recent developments and applications of dispersion-engineered metasurfaces in millimeter-scale diameter RGB-achromatic metalens and potential for future virtual-reality and augmented-reality platforms. We demonstrate millimeter-scale diameter, high-NA, submicron-thin, metalenses that achieve diffraction-limited achromatic focusing of the primary colors by exploiting constructive interference of light from multiple zones and dispersion engineering. We also utilize inverse-design framework for aperiodic large-scale complex meta-optics in three dimensions, which alleviates computational cost for both simulation and optimization via a fast-app fast-approximate solver and an adjoint method, respectively. To illustrate the potential of this approach, we demonstrate a future virtual-reality platforms by using our meta-eyepieces with a home-built fiber scanning near-eye display or a laser back-illuminated micro liquid crystal display.

Keywords: Metasurfaces, Metalens, Dispersion, Inverse design, Virtual reality and augmented reality