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Direct space–time manipulation mechanism for spatio-temporal coupling of ultrafast light field

Author

Listed:
  • Qinggang Lin

    (College of Physics and Optoelectronic Engineering, Shenzhen University)

  • Fu Feng

    (College of Physics and Optoelectronic Engineering, Shenzhen University
    Zhejiang Laboratory)

  • Yi Cai

    (College of Physics and Optoelectronic Engineering, Shenzhen University)

  • Xiaowei Lu

    (College of Physics and Optoelectronic Engineering, Shenzhen University)

  • Xuanke Zeng

    (College of Physics and Optoelectronic Engineering, Shenzhen University)

  • Congying Wang

    (College of Physics and Optoelectronic Engineering, Shenzhen University)

  • Shixiang Xu

    (College of Physics and Optoelectronic Engineering, Shenzhen University)

  • Jingzhen Li

    (College of Physics and Optoelectronic Engineering, Shenzhen University)

  • Xiaocong Yuan

    (College of Physics and Optoelectronic Engineering, Shenzhen University
    Zhejiang Laboratory)

Abstract

Traditionally, manipulation of spatiotemporal coupling (STC) of the ultrafast light fields can be actualized in the space-spectrum domain with some 4-f pulse shapers, which suffers usually from some limitations, such as spectral/pixel resolution and information crosstalk associated with the 4-f pulse shapers. This work introduces a novel mechanism for direct space-time manipulation of ultrafast light fields to overcome the limitations. This mechanism combines a space-dependent time delay with some spatial geometrical transformations, which has been experimentally proved by generating a high-quality STC light field, called light spring (LS). The LS, owing a broad topological charge bandwidth of 11.5 and a tunable central topological charge from 2 to −11, can propagate with a stable spatiotemporal intensity structure from near to far fields. This achievement implies the mechanism provides an efficient way to generate complex STC light fields, such as LS with potential applications in information encryption, optical communication, and laser-plasma acceleration.

Suggested Citation

  • Qinggang Lin & Fu Feng & Yi Cai & Xiaowei Lu & Xuanke Zeng & Congying Wang & Shixiang Xu & Jingzhen Li & Xiaocong Yuan, 2024. "Direct space–time manipulation mechanism for spatio-temporal coupling of ultrafast light field," Nature Communications, Nature, vol. 15(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-46802-x
    DOI: 10.1038/s41467-024-46802-x
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    References listed on IDEAS

    as
    1. Yijie Shen & Yaonan Hou & Nikitas Papasimakis & Nikolay I. Zheludev, 2021. "Supertoroidal light pulses as electromagnetic skyrmions propagating in free space," Nature Communications, Nature, vol. 12(1), pages 1-9, December.
    2. Murat Yessenov & Basanta Bhaduri & Peter J. Delfyett & Ayman F. Abouraddy, 2020. "Free-space optical delay line using space-time wave packets," Nature Communications, Nature, vol. 11(1), pages 1-10, December.
    3. Wei Chen & Wang Zhang & Yuan Liu & Fan-Chao Meng & John M. Dudley & Yan-Qing Lu, 2022. "Time diffraction-free transverse orbital angular momentum beams," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
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