Creating topological exceptional point by on-chip all-dielectric metasurface

Cheng Yi; Zejing Wang; Yangyang Shi; Shuai Wan; Jiao Tang; Wanlin Hu; Zile Li; Yongquan Zeng; Qinghua Song; Zhongyang Li

doi:10.1038/s41377-025-01955-2

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Creating topological exceptional point by on-chip all-dielectric metasurface

Original Articles

- Creating topological exceptional point by on-chip all-dielectric metasurface
- Light: Science & Applications Vol. 14, Issue 9, Pages: 2764-2771(2025)
- Affiliations：
  
  1.Electronic Information School, Wuhan University, Wuhan 430072, China
  2.Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
  3.Wuhan Institute of Quantum Technology, Wuhan 430206, China
- Author bio：
  
  Qinghua Song (song.qinghua@sz.tsinghua.edu.cn)
  Zhongyang Li (zhongyangli@whu.edu.cn)
- Funds：
- DOI：10.1038/s41377-025-01955-2
  CLC：
- Received：14 February 2025，
  
  Revised：2025-06-15，
  
  Accepted：06 July 2025，
  
  Published Online：05 August 2025，
  
  Published：30 September 2025
- Accepted：
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Yi, C. et al. Creating topological exceptional point by on-chip all-dielectric metasurface. Light: Science & Applications, 14, 2764-2771 (2025).
DOI：

Yi, C. et al. Creating topological exceptional point by on-chip all-dielectric metasurface. Light: Science & Applications, 14, 2764-2771 (2025). DOI： 10.1038/s41377-025-01955-2.

摘要

Abstract

Classified as a non-Hermitian system

topological metasurface is one of the ideal platforms for exploring a striking property

that is

the exceptional point (EP). Recently

creating and encircling EP in metasurfaces has triggered various progressive functionalities

including polarization control and optical holographic encoding. However

existing topological metasurfaces mostly rely on plasmonic materials

which introduce inevitable ohmic losses and limit their compatibility with mainstream all-dielectric meta-devices. Additionally

conventional free-space configurations also hinder the integration of multiple meta-devices in compact platforms. Here

an on-chip topological metasurface is experimentally demonstrated to create and engineer the topological phase encircling the EP in all-dielectric architectur

e. By massively screening the Si meta-atom geometry on the Si

waveguide

a 2π-topological phase shift is obtained by encircling the EP. Through combining with the Pancharatnam-Berry (PB) phase

we decouple the orthogonal circular polarization channels and unfold the independent encoding freedom for different holographic generations. As a proof of concept

the proposed on-chip topological metasurface enables floating holographic visualizations in real-world scenarios

functioning as practical augmented reality (AR) functionalities. Such the all-dielectric on-chip scheme eliminates ohmic losses and enables compatible integration with other on-chip meta-devices

thus suggesting promising applications in next-generation AR devices

multiplexing information storage

and advanced optical displays.

关键词

Keywords

references

Dorrah, A. H. & Capasso, F. Tunable structured light with flat optics. Science 376 , eabi6860 (2022)..

Song, Q. H. et al. Broadband decoupling of intensity and polarization with vectorial Fourier metasurfaces. Nat. Commun. 12 , 3631 (2021)..

Zhou, Z. et al. Electrically tunable planar liquid-crystal singlets for simultaneous spectrometry and imaging. Light Sci. Appl. 13 , 242 (2024)..

Mou, N. L. et al. Large-area perovskite nanocrystal metasurfaces for direction-tunable lasing. Nano Lett. 24 , 12676–12683 (2024)..

Qin, J. et al. Switching the optical chirality in magnetoplasmonic metasurfaces using applied magnetic fields. ACS Nano 14 , 2808–2816 (2020)..

Dai, C. J. et al. Switchable unidirectional emissions from hydrogel gratings with integrated carbon quantum dots. Nat. Commun. 15 , 845 (2024)..

Sh i, Y. Y. et al. On-chip meta-optics for engineering arbitrary trajectories with longitudinal polarization variation. Nano Lett. 24 , 2063–2070 (2024)..

Wang, Z. J. et al. Direction-decoupled light-emitting metasurface via guided-photoluminescence manipulation. Adv. Funct. Mater. 35 , 2415823 (2025)..

Dai, C. J. et al. Narrowband spectral-selective wavefront shaping via a Fabry-Perot-type blazed metagrating. J. Lightwave Technol. 43 , 1322–1327 (2025)..

Dai, C. J. et al. Dynamic wavelength-selective diffraction and absorption with direct-patterned hydrogel metagrating. Adv. Sci. 11 , 2408960 (2024)..

Li, X. L. et al. Hydrogel-waveguiding on-chip meta-optics for dynamic multicolor holography. Adv. Funct. Mater. 34 , 2408958 (2024)..

Pan, J. T. et al. Nonlinear geometric phase coded ferroelectric nematic fluids for nonlinear soft-matter photonics. Nat. Commun. 15 , 8732 (2024)..

Rao, R. L. et al. Programmable meta-holography dynamics enabled by grating-modulation. Photonics Res. 12 , 1522–1526 (2024)..

Shi, Y. Y. et al. Electrical-driven dynamic augmented reality by on-chip vectorial meta-display. ACS Photonics 11 , 2123–2130 (2024)..

Wan, S. et al. Multidimensional encryption by chip-integrated metasurfaces. ACS Nano 18 , 18693–18700 (2024)..

Hu, Y. Q. et al. 3D-integrated metasurfaces for full-colour holography. Light Sci. Appl. 8 , 86 (2019)..

Ko, J. et al. Metasurface-embedded contact lenses for holographic light projection. Adv. Sci. 11 , 2407045 (2024)..

Miri, M. A. & Alù, A. Exceptional points in optics and photonics. Science 363 , eaar7709 (2019)..

Sweeney, W. R. et al. Perfectly absorbing exceptional points and chiral absorbers. Phys. Rev. Lett. 122 , 093901 (2019)..

Chen, H. Z. et al. Revealing the missing dimension at an exceptional point. Nat. Phys. 16 , 571–578 (2020)..

Park, S. H. et al. Observation of an exceptional point in a non-Hermitian metasurface. Nanophotonics 9 , 1031–1039 (2020)..

Song, Q. H. et al. Plasmonic topological metasurface by encircling an exceptional point. Science 373 , 1133–1137 (2021)..

Wang, X. et al. Extremely asymmetrical acoustic metasurface mirror at the exceptional point. Phys. Rev. Lett. 123 , 214302 (2019)..

Xu, Y. H. et al. Subwavelength control of light transport at the exceptional point by non-Hermitian metagratings. Sci. Adv. 9 , eadf3510 (2023)..

Kim, M., Jacob, Z. & Rho, J. Recent advances in 2D, 3D and higher-order topological photonics. Light Sci. Appl. 9 , 130 (2020)..

Yang, Z. J. et al. Creating pairs of exceptional points for arbitrary polarization control: asymmetric vectorial wavefront modulation. Nat. Commun. 15 , 232 (2024)..

Hassan, A. U. et al. Dynamically encircling exceptional points: exact evolution and polarization state conversion. Phys. Rev. Lett. 118 , 093002 (2017)..

Li, A. D. et al. Riemann-encircling exceptional points for efficient asymmetric polarization-locked devices. Phys. Rev. Lett. 129 , 127401 (2022)..

Lang, Y. H. et al. Topological metasurface for spin-decoupled wavefront manipulation of terahertz surface plasmons. Laser Photonics Rev. 19 , 2401281 (2025)..

Kang, M. & Chong, Y. D. Coherent optical control of polarization with a critical metasurface. Phys. Rev. A 92 , 043826 (2015)..

Soleymani, S. et al. Chiral and degenerate perfect absorption on exceptional surfaces. Nat. Commun. 13 , 599 (2022)..

Wang, C. Q. et al. Coherent perfect absorption at an exceptional point. Science 373 , 1261–1265 (2021)..

Yang, Z. J. et al. Asymmetric full-color vectorial meta-holograms empowered by pairs of exceptional points. Nano Lett. 24 , 844–851 (2024)..

Wu, X. R. et al. Twins of exceptional points with opposite chirality for non-hermitian metasurfaces. ACS Photonics 11 , 2054–2060 (2024)..

Huang, Z. Q., Marks, D. L. & Smith, D. R. Out-of-plane computer-generated multicolor waveguide holography. Optica 6 , 119–124 (2019)..

Yang, Y. et al. Integrated metasurfaces for re-envisioning a near-future disruptive optical platform. Light Sci. Appl. 12 , 152 (2023)..

Zhang, Y. B. et al. On-chip multidimensional manipulation of far-field radiation with guided wave-driven metasurfaces. Laser Photonics Rev. 17 , 2300109 (2023)..

Ji, J. T. et al . On-chip multifunctional metasurfaces with full-parametric multiplexed Jones matrix. Nat. Commun. 15 , 8271 (2024)..

Kim, J. et al. Geometric and physical configurations of meta-atoms for advanced metasurface holography. InfoMat 3 , 739–754 (2021)..

Balthasar Mueller, J. P. et al. Metasurface polarization optics: independent phase control of arbitrary orthogonal states of polarization. Phys. Rev. Lett. 118 , 113901 (2017)..

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