Metaform optics: Bridging nanophotonics and freeform optics

Nikolov, Daniel; Bauer, Aaron; Cheng, Fei; Kato, Hitoshi; Vamivakas, A. Nick; Rolland, Jannick P.

doi:10.1126/sciadv.abe5112

Cited by 70 publications

(39 citation statements)

References 45 publications

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“…For high-performance meta-devices, one may consider the necessary elements, the precise alignment, the stability, etc. A few prototypes of imaging systems combining meta-optics and refractive optics have been developed 119 , 195 . For instance, a portable packaged full-stoke polarization camera is presented by integrating a metagrating with an off-the-shelf catalog lens and a CMOS imaging sensor 119 .…”

Section: Common Challenges For Further Developmentmentioning

confidence: 99%

Dielectric metalens for miniaturized imaging systems: progress and challenges

et al. 2022

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Lightweight, miniaturized optical imaging systems are vastly anticipated in these fields of aerospace exploration, industrial vision, consumer electronics, and medical imaging. However, conventional optical techniques are intricate to downscale as refractive lenses mostly rely on phase accumulation. Metalens, composed of subwavelength nanostructures that locally control light waves, offers a disruptive path for small-scale imaging systems. Recent advances in the design and nanofabrication of dielectric metalenses have led to some high-performance practical optical systems. This review outlines the exciting developments in the aforementioned area whilst highlighting the challenges of using dielectric metalenses to replace conventional optics in miniature optical systems. After a brief introduction to the fundamental physics of dielectric metalenses, the progress and challenges in terms of the typical performances are introduced. The supplementary discussion on the common challenges hindering further development is also presented, including the limitations of the conventional design methods, difficulties in scaling up, and device integration. Furthermore, the potential approaches to address the existing challenges are also deliberated.

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Section: Common Challenges For Further Developmentmentioning

confidence: 99%

Dielectric metalens for miniaturized imaging systems: progress and challenges

et al. 2022

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“…The simulation results indicate a potential path to larger FOVs up to 77.3 °horizontally and vertically (Hong et al, 2017). A recent work done by Nikolov et al introduced a new concept and working principles for a metaform which integrates a freeform optic and a metasurface into one single optical element (Nikolov et al, 2021). The metaform can be used as an optical combiner for AR NEDs and it shows promises to solve optical design challenges for AR NEDs.…”

Section: Metasurface-based Ar Near-eye Displaysmentioning

confidence: 90%

Challenges and Advancements for AR Optical See-Through Near-Eye Displays: A Review

Xia

Guan

Cai

et al. 2022

Front. Virtual Real.

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Optical see-through near-eye display (NED) technologies for augmented reality (AR) have achieved significant advancements recently with investments from both academia and industry. Although various AR NED products have been successfully commercialized and even deployed into applications, there are still challenges with present AR NED technologies (e.g., limited eyebox, fixed focus, bulky form factors). In this review, we present a brief overview of leading AR NED technologies and then focus on the state-of-the-art research works to counter the respective key challenges with each of the leading AR NED technologies. We also introduce a number of emerging technologies that are worthy of close study.

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“…The last research to be introduced is about the hybridization of freeform optics and metasurface, so called meta-form optics, by D. K. Nikolov et al, published in 2021 [ 30 ]. The merits of freeform optics in advanced compact optical systems including AR and VR displays have been verified through many publications.…”

Section: Applications Based On Three-dimensional Imagingmentioning

confidence: 99%

“…( i ) Measured longitudinal apochromatic focusing property, ( ii ) principle of metalens assisted fiber scanning display, and ( iii ) captured image of full-color augmented reality scene using a beam splitter as an image combiner. ( c ) Hybridization of dielectric metasurface and freeform optics [ 30 ]. ( i ) Ray tracing diagram of a miniature image combiner design with a metaform mirror and ( ii ) the imaging result of a resolution target.…”

Section: Figurementioning

confidence: 99%

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Dielectric Metalens: Properties and Three-Dimensional Imaging Applications

Kim

et al. 2021

Sensors

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Recently, optical dielectric metasurfaces, ultrathin optical skins with densely arranged dielectric nanoantennas, have arisen as next-generation technologies with merits for miniaturization and functional improvement of conventional optical components. In particular, dielectric metalenses capable of optical focusing and imaging have attracted enormous attention from academic and industrial communities of optics. They can offer cutting-edge lensing functions owing to arbitrary wavefront encoding, polarization tunability, high efficiency, large diffraction angle, strong dispersion, and novel ultracompact integration methods. Based on the properties, dielectric metalenses have been applied to numerous three-dimensional imaging applications including wearable augmented or virtual reality displays with depth information, and optical sensing of three-dimensional position of object and various light properties. In this paper, we introduce the properties of optical dielectric metalenses, and review the working principles and recent advances in three-dimensional imaging applications based on them. The authors envision that the dielectric metalens and metasurface technologies could make breakthroughs for a wide range of compact optical systems for three-dimensional display and sensing.

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Metaform optics: Bridging nanophotonics and freeform optics

Cited by 70 publications

References 45 publications

Dielectric metalens for miniaturized imaging systems: progress and challenges

Dielectric metalens for miniaturized imaging systems: progress and challenges

Challenges and Advancements for AR Optical See-Through Near-Eye Displays: A Review

Dielectric Metalens: Properties and Three-Dimensional Imaging Applications

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