IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v10y2019i1d10.1038_s41467-018-08057-1.html
   My bibliography  Save this article

Active control of anapole states by structuring the phase-change alloy Ge2Sb2Te5

Author

Listed:
  • Jingyi Tian

    (State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University
    Royal Institute of Technology, KTH)

  • Hao Luo

    (State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University)

  • Yuanqing Yang

    (SDU Nano Optics, University of Southern Denmark)

  • Fei Ding

    (SDU Nano Optics, University of Southern Denmark)

  • Yurui Qu

    (State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University
    Massachusetts Institute of Technology)

  • Ding Zhao

    (DTU Danchip/Cen, Technical University of Denmark)

  • Min Qiu

    (State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University
    Westlake University
    Institute of Advanced Technology, Westlake Institute for Advanced Study)

  • Sergey I. Bozhevolnyi

    (SDU Nano Optics, University of Southern Denmark)

Abstract

High-index dielectric nanoparticles supporting a distinct series of Mie resonances have enabled a new class of optical antennas with unprecedented functionalities. The great wealth of multipolar responses has not only brought in new physical insight but also spurred practical applications. However, how to make such a colorful resonance palette actively tunable is still elusive. Here, we demonstrate that the structured phase-change alloy Ge2Sb2Te5 (GST) can support a diverse set of multipolar Mie resonances with active tunability. By harnessing the dramatic optical contrast of GST, we realize broadband (Δλ/λ ~ 15%) mode shifting between an electric dipole resonance and an anapole state. Active control of higher-order anapoles and multimodal tuning are also investigated, which make the structured GST serve as a multispectral optical switch with high extinction contrasts (>6 dB). With all these findings, our study provides a new direction for realizing active nanophotonic devices.

Suggested Citation

  • Jingyi Tian & Hao Luo & Yuanqing Yang & Fei Ding & Yurui Qu & Ding Zhao & Min Qiu & Sergey I. Bozhevolnyi, 2019. "Active control of anapole states by structuring the phase-change alloy Ge2Sb2Te5," Nature Communications, Nature, vol. 10(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-018-08057-1
    DOI: 10.1038/s41467-018-08057-1
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-018-08057-1
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-018-08057-1?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. Sajjad Abdollahramezani & Omid Hemmatyar & Mohammad Taghinejad & Hossein Taghinejad & Alex Krasnok & Ali A. Eftekhar & Christian Teichrib & Sanchit Deshmukh & Mostafa A. El-Sayed & Eric Pop & Matthias, 2022. "Electrically driven reprogrammable phase-change metasurface reaching 80% efficiency," Nature Communications, Nature, vol. 13(1), pages 1-11, 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:10:y:2019:i:1:d:10.1038_s41467-018-08057-1. 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.