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Efficient nonlinear beam shaping in three-dimensional lithium niobate nonlinear photonic crystals

Author

Listed:
  • Dunzhao Wei

    (Nanjing University)

  • Chaowei Wang

    (University of Science and Technology of China)

  • Xiaoyi Xu

    (Nanjing University)

  • Huijun Wang

    (Nanjing University)

  • Yanlei Hu

    (University of Science and Technology of China)

  • Pengcheng Chen

    (Nanjing University)

  • Jiawen Li

    (University of Science and Technology of China)

  • Yunzhi Zhu

    (Nanjing University)

  • Chen Xin

    (University of Science and Technology of China)

  • Xiaopeng Hu

    (Nanjing University)

  • Yong Zhang

    (Nanjing University)

  • Dong Wu

    (University of Science and Technology of China)

  • Jiaru Chu

    (University of Science and Technology of China)

  • Shining Zhu

    (Nanjing University)

  • Min Xiao

    (Nanjing University
    University of Arkansas)

Abstract

Nonlinear beam shaping refers to spatial reconfiguration of a light beam at a new frequency, which can be achieved by using nonlinear photonic crystals (NPCs). Direct nonlinear beam shaping has been achieved to convert second-harmonic waves into focusing spots, vortex beams, and diffraction-free beams. However, previous nonlinear beam shaping configurations in one-dimensional and two-dimensional (2D) NPCs generally suffer from low efficiency because of unfulfilled phase-matching condition. Here, we present efficient generations of second-harmonic vortex and Hermite-Gaussian beams in the recently-developed three-dimensional (3D) lithium niobate NPCs fabricated by using a femtosecond-laser-engineering technique. Since 3D χ(2) modulations can be designed to simultaneously fulfill the requirements of nonlinear wave-front shaping and quasi-phase-matching, the conversion efficiency is enhanced up to two orders of magnitude in a tens-of-microns-long 3D NPC in comparison to the 2D case. Efficient nonlinear beam shaping paves a way for its applications in optical communication, super-resolution imaging, high-dimensional entangled source, etc.

Suggested Citation

  • Dunzhao Wei & Chaowei Wang & Xiaoyi Xu & Huijun Wang & Yanlei Hu & Pengcheng Chen & Jiawen Li & Yunzhi Zhu & Chen Xin & Xiaopeng Hu & Yong Zhang & Dong Wu & Jiaru Chu & Shining Zhu & Min Xiao, 2019. "Efficient nonlinear beam shaping in three-dimensional lithium niobate nonlinear photonic crystals," Nature Communications, Nature, vol. 10(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-12251-0
    DOI: 10.1038/s41467-019-12251-0
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    Cited by:

    1. Pengcheng Chen & Xiaoyi Xu & Tianxin Wang & Chao Zhou & Dunzhao Wei & Jianan Ma & Junjie Guo & Xuejing Cui & Xiaoyan Cheng & Chenzhu Xie & Shuang Zhang & Shining Zhu & Min Xiao & Yong Zhang, 2023. "Laser nanoprinting of 3D nonlinear holograms beyond 25000 pixels-per-inch for inter-wavelength-band information processing," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

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