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Helical polymers for dissymmetric circularly polarized light imaging

Author

Listed:
  • Inho Song

    (Seoul National University
    Purdue University)

  • Jaeyong Ahn

    (Seoul National University)

  • Hyungju Ahn

    (Pohang University of Science and Technology)

  • Sang Hyuk Lee

    (Seoul National University)

  • Jianguo Mei

    (Purdue University)

  • Nicholas A. Kotov

    (University of Michigan
    University of Michigan)

  • Joon Hak Oh

    (Seoul National University)

Abstract

Control of the spin angular momentum (SAM) carried in a photon provides a technologically attractive element for next-generation quantum networks and spintronics1–5. However, the weak optical activity and inhomogeneity of thin films from chiral molecular crystals result in high noise and uncertainty in SAM detection. Brittleness of thin molecular crystals represents a further problem for device integration and practical realization of chiroptical quantum devices6–10. Despite considerable successes with highly dissymmetric optical materials based on chiral nanostructures11–13, the problem of integration of nanochiral materials with optical device platforms remains acute14–16. Here we report a simple yet powerful method to fabricate chiroptical flexible layers via supramolecular helical ordering of conjugated polymer chains. Their multiscale chirality and optical activity can be varied across the broad spectral range by chiral templating with volatile enantiomers. After template removal, chromophores remain stacked in one-dimensional helical nanofibrils producing a homogeneous chiroptical layer with drastically enhanced polarization-dependent absorbance, leading to well-resolved detection and visualization of SAM. This study provides a direct path to scalable realization of on-chip detection of the spin degree of freedom of photons necessary for encoded quantum information processing and high-resolution polarization imaging.

Suggested Citation

  • Inho Song & Jaeyong Ahn & Hyungju Ahn & Sang Hyuk Lee & Jianguo Mei & Nicholas A. Kotov & Joon Hak Oh, 2023. "Helical polymers for dissymmetric circularly polarized light imaging," Nature, Nature, vol. 617(7959), pages 92-99, May.
  • Handle: RePEc:nat:nature:v:617:y:2023:i:7959:d:10.1038_s41586-023-05877-0
    DOI: 10.1038/s41586-023-05877-0
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    Cited by:

    1. Mingjian Zeng & Weiguang Wang & Shuman Zhang & Zhisheng Gao & Yingmeng Yan & Yitong Liu & Yulong Qi & Xin Yan & Wei Zhao & Xin Zhang & Ningning Guo & Huanhuan Li & Hui Li & Gaozhan Xie & Ye Tao & Runf, 2024. "Enabling robust blue circularly polarized organic afterglow through self-confining isolated chiral chromophore," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    2. Yoon Ho Lee & Yousang Won & Jungho Mun & Sanghyuk Lee & Yeseul Kim & Bongjun Yeom & Letian Dou & Junsuk Rho & Joon Hak Oh, 2023. "Hierarchically manufactured chiral plasmonic nanostructures with gigantic chirality for polarized emission and information encryption," Nature Communications, Nature, vol. 14(1), pages 1-12, December.

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