IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v11y2020i1d10.1038_s41467-020-19913-4.html
   My bibliography  Save this article

Edge-oriented and steerable hyperbolic polaritons in anisotropic van der Waals nanocavities

Author

Listed:
  • Zhigao Dai

    (China University of Geosciences
    Monash University)

  • Guangwei Hu

    (National University of Singapore
    City University of New York)

  • Guangyuan Si

    (Northeastern University)

  • Qingdong Ou

    (Monash University)

  • Qing Zhang

    (National University of Singapore)

  • Sivacarendran Balendhran

    (The University of Melbourne)

  • Fahmida Rahman

    (RMIT University)

  • Bao Yue Zhang

    (RMIT University)

  • Jian Zhen Ou

    (RMIT University)

  • Guogang Li

    (China University of Geosciences)

  • Andrea Alù

    (City University of New York
    City University of New York)

  • Cheng-Wei Qiu

    (National University of Singapore)

  • Qiaoliang Bao

    (Monash University
    The Hong Kong Polytechnic University, Hung Hom, Kowloon)

Abstract

Highly confined and low-loss polaritons are known to propagate isotropically over graphene and hexagonal boron nitride in the plane, leaving limited degrees of freedom in manipulating light at the nanoscale. The emerging family of biaxial van der Waals materials, such as α-MoO3 and V2O5, support exotic polariton propagation, as their auxiliary optical axis is in the plane. Here, exploiting this strong in-plane anisotropy, we report edge-tailored hyperbolic polaritons in patterned α-MoO3 nanocavities via real-space nanoimaging. We find that the angle between the edge orientation and the crystallographic direction significantly affects the optical response, and can serve as a key tuning parameter in tailoring the polaritonic patterns. By shaping α-MoO3 nanocavities with different geometries, we observe edge-oriented and steerable hyperbolic polaritons as well as forbidden zones where the polaritons detour. The lifetime and figure of merit of the hyperbolic polaritons can be regulated by the edge aspect ratio of nanocavity.

Suggested Citation

  • Zhigao Dai & Guangwei Hu & Guangyuan Si & Qingdong Ou & Qing Zhang & Sivacarendran Balendhran & Fahmida Rahman & Bao Yue Zhang & Jian Zhen Ou & Guogang Li & Andrea Alù & Cheng-Wei Qiu & Qiaoliang Bao, 2020. "Edge-oriented and steerable hyperbolic polaritons in anisotropic van der Waals nanocavities," Nature Communications, Nature, vol. 11(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-19913-4
    DOI: 10.1038/s41467-020-19913-4
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-020-19913-4
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-020-19913-4?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Jiangtao Lv & Yingjie Wu & Jingying Liu & Youning Gong & Guangyuan Si & Guangwei Hu & Qing Zhang & Yupeng Zhang & Jian-Xin Tang & Michael S. Fuhrer & Hongsheng Chen & Stefan A. Maier & Cheng-Wei Qiu &, 2023. "Hyperbolic polaritonic crystals with configurable low-symmetry Bloch modes," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    2. Neda Alsadat Aghamiri & Guangwei Hu & Alireza Fali & Zhen Zhang & Jiahan Li & Sivacarendran Balendhran & Sumeet Walia & Sharath Sriram & James H. Edgar & Shriram Ramanathan & Andrea Alù & Yohannes Aba, 2022. "Reconfigurable hyperbolic polaritonics with correlated oxide metasurfaces," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    3. Joseph Matson & Sören Wasserroth & Xiang Ni & Maximilian Obst & Katja Diaz-Granados & Giulia Carini & Enrico Maria Renzi & Emanuele Galiffi & Thomas G. Folland & Lukas M. Eng & J. Michael Klopf & Stef, 2023. "Controlling the propagation asymmetry of hyperbolic shear polaritons in beta-gallium oxide," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    4. H. Shiravi & A. Gupta & B. R. Ortiz & S. Cui & B. Yu & E. Uykur & A. A. Tsirlin & S. D. Wilson & Z. Sun & G. X. Ni, 2024. "Plasmons in the Kagome metal CsV3Sb5," Nature Communications, Nature, vol. 15(1), pages 1-7, December.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-19913-4. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.