Metasurface Engineering for Optical Technologies

Metasurface engineering harnesses arrays of subwavelength structures to impose arbitrary phase, amplitude and polarisation profiles on incident light, consolidating complex optical functions into ultrathin, planar platforms. By patterning dielectric or plasmonic meta-atoms with tailored geometry and orientation, designers achieve beam steering, holography, aberration correction and lensing without bulky refractive elements. Advances in dispersion control and geometric-phase manipulation enable achromatic operation and broadband performance across visible to infrared bands. Emerging fabrication strategies—from nanoimprint lithography to soft lithography and colloidal self-assembly—are lowering cost barriers and enabling wafer-scale production. Tunable metasurfaces incorporating liquid crystals, phase-change materials or microelectromechanical elements offer dynamic reconfiguration of focal length, wavefront shape and spectral response. These innovations underpin miniaturised imaging systems, lightweight augmented-reality optics, high-capacity optical communications and compact spectrometers. By bridging fundamental studies in light–matter interaction with scalable manufacturing, metasurface engineering is poised to deliver next-generation photonic components that integrate seamlessly into consumer electronics, biomedical devices and aerospace platforms.

Research from Nature Portfolio

Recent studies have demonstrated single-step fabrication of hierarchical dielectric metalenses operating in the visible range by embedding high-index nanoparticles within UV-curable resins and employing nanoimprint lithography, achieving high focusing efficiency and rapid replication for commercial-scale deployment. Two-dimensional dispersion engineering of anisotropic metamirror arrays has achieved super-octave bandwidth polarisation conversion, enabling achromatic rotation of linear polarisation across four octaves. A complementary work has introduced compensation between structural and material dispersion in metal-insulator-metal waveguides to realise flat integrated deflectors and lenses with suppressed chromatic aberration, offering a pathway to ultra-thin, broadband optical components.

Metasurface Engineering for Optical Technologies publication trend

The graph below shows the total number of articles in metasurface engineering for optical technologies across all publications each year (not limited to Nature Index journals).

Technical terms

Metasurface: An ultrathin planar array of engineered subwavelength elements that impose spatially varying optical responses.

Metalens: A flat lens formed by a metasurface that focuses or shapes light via tailored phase profiles.

Geometric phase (Pancharatnam–Berry phase): A phase shift acquired through rotation of anisotropic meta-atoms, independent of wavelength in ideal designs.

Achromatic: Operating uniformly across a broad spectral range without significant dispersion-induced aberration.

Nanoimprint lithography: A high-throughput fabrication technique using a mould to stamp nanoscale patterns into polymer resists.

Soft lithography: A set of low-cost micro/nanofabrication methods employing elastomeric stamps or moulds for pattern transfer.

References

1. Single-step manufacturing of hierarchical dielectric metalens in the visible. Nature Communications (2020).
2. Dispersion management of anisotropic metamirror for super-octave bandwidth polarization conversion. Scientific Reports (2015).
3. Achromatic flat optical components via compensation between structure and material dispersions. Scientific Reports (2016).
4. Emerging low-cost, large-scale photonic platforms with soft lithography and self-assembly. Photonics Insights (2023).
5. Tunable metasurfaces towards versatile metalenses and metaholograms: a review. Advanced Photonics (2022).
6. Electrically Tunable Bifocal Metalens with Diffraction‐Limited Focusing and Imaging at Visible Wavelengths. Advanced Science (2021).