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Light-emitting metalenses and meta-axicons for focusing and beaming of spontaneous emission

Author

Listed:
  • Yahya Mohtashami

    (University of California Santa Barbara)

  • Ryan A. DeCrescent

    (University of California Santa Barbara)

  • Larry K. Heki

    (University of California Santa Barbara)

  • Prasad P. Iyer

    (University of California Santa Barbara)

  • Nikita A. Butakov

    (University of California Santa Barbara)

  • Matthew S. Wong

    (University of California Santa Barbara
    Solid State Lighting and Energy Electronics Center, University of California Santa Barbara)

  • Abdullah Alhassan

    (University of California Santa Barbara
    Solid State Lighting and Energy Electronics Center, University of California Santa Barbara)

  • William J. Mitchell

    (Nanofabrication Facility, University of California Santa Barbara)

  • Shuji Nakamura

    (University of California Santa Barbara
    University of California Santa Barbara
    Solid State Lighting and Energy Electronics Center, University of California Santa Barbara)

  • Steven P. DenBaars

    (University of California Santa Barbara
    University of California Santa Barbara
    Solid State Lighting and Energy Electronics Center, University of California Santa Barbara)

  • Jon. A. Schuller

    (University of California Santa Barbara)

Abstract

Phased-array metasurfaces have been extensively used for wavefront shaping of coherent incident light. Due to the incoherent nature of spontaneous emission, the ability to similarly tailor photoluminescence remains largely unexplored. Recently, unidirectional photoluminescence from InGaN/GaN quantum-well metasurfaces incorporating one-dimensional phase profiles has been shown. However, the possibility of generating arbitrary two-dimensional waveforms—such as focused beams—is not yet realized. Here, we demonstrate two-dimensional metasurface axicons and lenses that emit collimated and focused beams, respectively. First, we develop off-axis meta-axicon/metalens equations designed to redirect surface-guided waves that dominate the natural emission pattern of quantum wells. Next, we show that photoluminescence properties are well predicted by passive transmission results using suitably engineered incident light sources. Finally, we compare collimating and focusing performances across a variety of different light-emitting metasurface axicons and lenses. These generated two-dimensional phased-array photoluminescence waveforms facilitate future development of light sources with arbitrary functionalities.

Suggested Citation

  • Yahya Mohtashami & Ryan A. DeCrescent & Larry K. Heki & Prasad P. Iyer & Nikita A. Butakov & Matthew S. Wong & Abdullah Alhassan & William J. Mitchell & Shuji Nakamura & Steven P. DenBaars & Jon. A. S, 2021. "Light-emitting metalenses and meta-axicons for focusing and beaming of spontaneous emission," Nature Communications, Nature, vol. 12(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-23433-0
    DOI: 10.1038/s41467-021-23433-0
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    Cited by:

    1. Ruixuan Zheng & Ruhao Pan & Guangzhou Geng & Qiang Jiang & Shuo Du & Lingling Huang & Changzhi Gu & Junjie Li, 2022. "Active multiband varifocal metalenses based on orbital angular momentum division multiplexing," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    2. Chenjie Dai & Shuai Wan & Zhe Li & Yangyang Shi & Shuang Zhang & Zhongyang Li, 2024. "Switchable unidirectional emissions from hydrogel gratings with integrated carbon quantum dots," Nature Communications, Nature, vol. 15(1), pages 1-7, December.

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