光メタマテリアルのスケーラブル製造でブレークスルー達成(Scientists Achieve Scalable Fabrication Breakthrough for Optical Metamaterials)

2026-04-24 中国科学院(CAS)

中国科学院化学研究所(ICCAS)とシンガポール国立大学の共同研究チームは、光学メタマテリアルの大規模製造に関する新手法を開発した。独自のロール・ツー・ロール型ナノプリンティング装置により、低コスト・大量生産・個別カスタマイズという従来のトレードオフを克服し、構造設計と光学特性の最適化を同時に実現した。新聞印刷のように連続的かつ精密に多層・多尺度構造を形成できる点が特徴で、マイクロ・ナノフォトニクス分野に新たな可能性を開く成果である。今後は高感度光センサーチップ開発を目指し、情報フォトニクスや偽造防止、医療センシング、グリーンエネルギーなど幅広い応用が期待される。

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印刷可能なメタアセンブリにより、相乗的な着色が可能になる Printable meta-assemblies enable synergetic colouration

Kaixuan Li,Jianfeng Chen,Huizeng Li,An Li,Xiaoyu Hou,Sujuan Ma,Maoxiong Zhao,Shengnan Chen,Quan Liu,Dongyu Yang,Rujun Li,Xiao Deng,Renxuan Yuan,Luanluan Xue,Wanling Liu,Ming Yang,Zhimei Jia,Mingzhu Li,Joel K. W. Yang,Cheng-Wei Qiu & Yanlin Song
Nature  Published:22 April 2026
DOI:https://doi.org/10.1038/s41586-026-10408-8

光メタマテリアルのスケーラブル製造でブレークスルー達成(Scientists Achieve Scalable Fabrication Breakthrough for Optical Metamaterials)

Abstract

Biological systems achieve multifunctionality through the synergy of nanoscale building blocks and microscale morphological hierarchies, a multiscale structure that would be advantageous to implement in metamaterials1,2,3,4,5. However, most artificial optical systems can only be fabricated on a single scale, facing the challenges of limited scalability, inadequate tunability and monotonous functionality6,7,8. Here we present a printable meta-assembly strategy that enables the fabrication of multiscale hierarchical optical architectures through continuous roll-to-roll (R2R) manufacturing. The meta-assembly comprises low-cost polystyrene (PS) nanoparticles periodically embedded in a polydimethylsiloxane (PDMS) matrix, forming a nanolattice-based microconcave optical interface that enables precise integration of guided-wave and reflected-wave dispersion and interference9,10,11,12. By optical coupling, distinct synergetic colouration is explored and experimentally realized with high designability and tunability. Overcoming scalability constraints, metre-scale meta-assembly prints with single-pixel customization can be rapidly fabricated from the nanoscale building blocks, spanning seven orders of magnitude in length. The vibrant prints exhibit controlled colour separation and integration performances, along with environmental stability, showing potential for eco-friendly colouration, intelligent displays and information security. This work provides a versatile methodology for biologically inspired metamaterial construction by means of multiscale photonics research.

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