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Chirality invertible superstructure mediated active planar optics

Author

Listed:
  • Peng Chen

    (College of Engineering and Applied Sciences, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University
    Institute for Smart Liquid Crystals, JITRI)

  • Ling-Ling Ma

    (College of Engineering and Applied Sciences, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University)

  • Wei Hu

    (College of Engineering and Applied Sciences, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University
    Institute for Smart Liquid Crystals, JITRI)

  • Zhi-Xiong Shen

    (College of Engineering and Applied Sciences, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University
    Institute for Smart Liquid Crystals, JITRI)

  • Hari Krishna Bisoyi

    (Kent State University)

  • Sai-Bo Wu

    (College of Engineering and Applied Sciences, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University
    Institute for Smart Liquid Crystals, JITRI)

  • Shi-Jun Ge

    (College of Engineering and Applied Sciences, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University
    Institute for Smart Liquid Crystals, JITRI)

  • Quan Li

    (Kent State University)

  • Yan-Qing Lu

    (College of Engineering and Applied Sciences, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University)

Abstract

Active planar optical devices that can dynamically manipulate light are highly sought after in modern optics and nanophotonics. The geometric phase derived from the photonic spin-orbit interaction provides an integrated strategy. Corresponding elements usually suffer from static functions. Here, we introduce an inhomogeneously self-organized anisotropic medium featured by photo-invertible chiral superstructure to realize geometric phase elements with continuously tunable working spectrum and light-flipped phase profile. Via preprograming the alignment of a cholesteric liquid crystal mixed with a photo-responsive chiral dopant, we demonstrate light-activated deflector, lens, Airy beam and optical vortex generators. Their polychromatic working bands are reversibly tuned in an ultra-broadband over 1000 nm covering green to telecomm region. The chirality inversion triggers facile switching of functionalities, such as beam steering, focusing/defocusing and spin-to-orbital angular momentum conversion. This work offers a platform for advanced adaptive and multifunctional flat optics with merits of high compactness, low loss and broad bandwidth.

Suggested Citation

  • Peng Chen & Ling-Ling Ma & Wei Hu & Zhi-Xiong Shen & Hari Krishna Bisoyi & Sai-Bo Wu & Shi-Jun Ge & Quan Li & Yan-Qing Lu, 2019. "Chirality invertible superstructure mediated active planar optics," Nature Communications, Nature, vol. 10(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-10538-w
    DOI: 10.1038/s41467-019-10538-w
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    Cited by:

    1. Yi-Heng Zhang & Si-Jia Liu & Peng Chen & Dong Zhu & Wen Chen & Shi-Jun Ge & Yu Wang & Zhi-Feng Zhang & Yan-Qing Lu, 2024. "Logical rotation of non-separable states via uniformly self-assembled chiral superstructures," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    2. Feng Mei & Geyang Qu & Xinbo Sha & Jing Han & Moxin Yu & Hao Li & Qinmiao Chen & Ziheng Ji & Jincheng Ni & Cheng-Wei Qiu & Qinghai Song & Yuri Kivshar & Shumin Xiao, 2023. "Cascaded metasurfaces for high-purity vortex generation," Nature Communications, Nature, vol. 14(1), pages 1-6, December.

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