High-efficiency high-NA metalens designed by maximizing the efficiency limit
arXiv:2311.13592 · doi:10.1364/OPTICA.514907
Abstract
Theoretical bounds are commonly used to assess the limitations of photonic design. Here we introduce a more active way to use theoretical bounds, integrating them into part of the design process and identifying optimal system parameters that maximize the efficiency limit itself. As an example, we consider wide-field-of-view high-numerical-aperture metalenses, which can be used for high-resolution imaging in microscopy and endoscopy, but no existing design has achieved a high efficiency. By choosing aperture sizes to maximize an efficiency bound, setting the thickness according to a thickness bound, and then performing inverse design, we come up with high-numerical-aperture (NA = 0.9) metalens designs with record-high 98% transmission efficiency and 92% Strehl ratio across all incident angles within a 60-deg field of view, reaching the maximized bound. This maximizing-efficiency-limit approach applies to any multi-channel system and can help a wide range of optical devices reach their highest possible performance.
References in corpus (22)
- Outlook for inverse design in nanophotonics
- Subwavelength-thick Lenses with High Numerical Apertures and Large Efficiency Based on High Contrast Transmitarrays
- Miniature optical planar camera based on a wide-angle metasurface doublet corrected for monochromatic aberrations
- Perfect control of reflection and refraction using spatially dispersive metasurfaces
- A Metalens with Near-Unity Numerical Aperture
- An Ultra-high Numerical Aperture Metalens at Visible Wavelengths
- High-NA Achromatic Metalenses by Inverse Design
- Waves, modes, communications and optics
- Designing large, high-efficiency, high-numerical-aperture, transmissive meta-lenses for visible light
- Why optics needs thickness
- Overlapping domains for topology optimization of large-area metasurfaces
- Computational inverse design for ultra-compact single-piece metalenses free of chromatic and angular aberration
- Towards 3D-Printed Inverse-Designed Metaoptics
- Thickness bound for nonlocal wide-field-of-view metalenses
- Fast multi-source nanophotonic simulations using augmented partial factorization
- Scattering concentration bounds: Brightness theorems for waves
- Maximal Free-Space Concentration of Electromagnetic Waves
- Towards Maximum Optical Efficiency of Ensembles of Colloidal Nanorods
- Transmission efficiency limit for nonlocal metalenses
- Fullwave design of cm-scale cylindrical metasurfaces via fast direct solvers
- Fast multi-channel inverse design through augmented partial factorization
- Wide Field-of-View, Large-Area Long-wave Infrared Silicon Metalenses