Mitigating Chromatic Dispersion with Hybrid Optical Metasurfaces

Sawant, Rajath; Bhumkar, Purva; Zhu, Alexander Y.; Ni, Pengpeng; Capasso, Federico; Genevet, Patrice

doi:10.1002/adma.201805555

Cited by 44 publications

(35 citation statements)

References 30 publications

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“…By quantifying uncertainties for the optimized design we obtained confidence intervals for the transmission efficiencies, which are in good agreement with the experimental results. Evaluating the potential and the physical limits of GaN metaoptics is also of importance to push further toward large market applications such as imaging, lighting and displays and hybrid optical components [52,53]. The results discussed in this manuscript comfort the initial assumption about the potential impact of GaN metamaterial and its implication in designing novel and efficient passive and active meta-optical components for practical applications.…”

Section: Discussionsupporting

confidence: 53%

Optimization and uncertainty quantification of gradient index metasurfaces [Invited]

Schmitt¹,

Georg²,

Brière³

et al. 2019

Opt. Mater. Express

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The design of intrinsically flat two-dimensional optical components, i.e., metasurfaces, generally requires an extensive parameter search to target the appropriate scattering properties of their constituting building blocks. Such design methodologies neglect important near-field interaction effects, playing an essential role in limiting the device performance. Optimization of transmission, phase-addressing and broadband performances of metasurfaces require new numerical tools. Additionally, uncertainties and systematic fabrication errors should be analysed. These estimations, of critical importance in the case of large production of metaoptics components, are useful to further project their deployment in industrial applications. Here, we report on a computational methodology to optimize metasurface designs. We complement this computational methodology by quantifying the impact of fabrication uncertainties on the experimentally characterized components. This analysis provides general perspectives on the overall metaoptics performances, giving an idea of the expected average behavior of a large number of devices.

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Section: Discussionsupporting

confidence: 53%

Optimization and uncertainty quantification of gradient index metasurfaces [Invited]

Schmitt¹,

Georg²,

Brière³

et al. 2019

Opt. Mater. Express

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“…Metasurfaces, which allow the complete control of the wavefront of an electromagnetic wave with an ultrathin photonic device, have provided an indispensable platform for both fundamental studies of light-matter interactions 1–5 and a diverse range of photonic applications in optical microscopy and imaging 6–9 , dispersion compensation 10–12 , skin cloak 13 , surface waves engineering 14 and multiplexing 15 , and intelligent photonics 16 . Owing to the subwavelength nature of plasmonic 1 and dielectric 17–20 meta-atoms, high-resolution metasurfaces have revolutionized the photonic design of meta-holograms for holographic displays 21–24 , optical encryption 25,26 , and nonlinear holography 27 .…”

Section: Introductionmentioning

confidence: 99%

Metasurface orbital angular momentum holography

et al. 2019

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Allowing subwavelength-scale-digitization of optical wavefronts to achieve complete control of light at interfaces, metasurfaces are particularly suited for the realization of planar phase-holograms that promise new applications in high-capacity information technologies. Similarly, the use of orbital angular momentum of light as a new degree of freedom for information processing can further improve the bandwidth of optical communications. However, due to the lack of orbital angular momentum selectivity in the design of conventional holograms, their utilization as an information carrier for holography has never been implemented. Here we demonstrate metasurface orbital angular momentum holography by utilizing strong orbital angular momentum selectivity offered by meta-holograms consisting of GaN nanopillars with discrete spatial frequency distributions. The reported orbital angular momentum-multiplexing allows lensless reconstruction of a range of distinctive orbital angular momentum-dependent holographic images. The results pave the way to the realization of ultrahigh-capacity holographic devices harnessing the previously inaccessible orbital angular momentum multiplexing.

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“…In addition, a metasystem combining functional metasurfaces (e.g., metalens) with conventional optical elements (fiber, conventional lens, etc. ), may possess the advantages of both devices and thus achieve unusual physical effects and functionalities [401][402][403]. We expect that there will be plenty of room for researchers working along this direction.…”

Section: Discussionmentioning

confidence: 99%

Electromagnetic metasurfaces: physics and applications

et al. 2019

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H-shaped resonators (inset) are adopted to realize, respectively, the desired B layer with negative ε and A layers with positive ε at the working frequencies [25]. (d) Top and middle panels: interference model and practical design of the metamaterial antireflection coating. Middle panel: experimentally measured reflectance and transmittance spectra for the normal incidence case. The solid and dashed lines represent the reflectance and transmittance of a bare GaAs surface [26]. (a) Figure 1 reprinted with permission from Martín-Moreno et al.,

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Mitigating Chromatic Dispersion with Hybrid Optical Metasurfaces

Cited by 44 publications

References 30 publications

Optimization and uncertainty quantification of gradient index metasurfaces [Invited]

Optimization and uncertainty quantification of gradient index metasurfaces [Invited]

Metasurface orbital angular momentum holography

Electromagnetic metasurfaces: physics and applications

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