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Slow light nanocoatings for ultrashort pulse compression

Author

Listed:
  • M. Ossiander

    (Harvard University)

  • Y.-W. Huang

    (Harvard University
    National Yang Ming Chiao Tung University)

  • W. T. Chen

    (Harvard University)

  • Z. Wang

    (Graz University of Technology)

  • X. Yin

    (Harvard University)

  • Y. A. Ibrahim

    (Harvard University
    University of Waterloo)

  • M. Schultze

    (Graz University of Technology)

  • F. Capasso

    (Harvard University)

Abstract

Transparent materials do not absorb light but have profound influence on the phase evolution of transmitted radiation. One consequence is chromatic dispersion, i.e., light of different frequencies travels at different velocities, causing ultrashort laser pulses to elongate in time while propagating. Here we experimentally demonstrate ultrathin nanostructured coatings that resolve this challenge: we tailor the dispersion of silicon nanopillar arrays such that they temporally reshape pulses upon transmission using slow light effects and act as ultrashort laser pulse compressors. The coatings induce anomalous group delay dispersion in the visible to near-infrared spectral region around 800 nm wavelength over an 80 nm bandwidth. We characterize the arrays’ performance in the spectral domain via white light interferometry and directly demonstrate the temporal compression of femtosecond laser pulses. Applying these coatings to conventional optics renders them ultrashort pulse compatible and suitable for a wide range of applications.

Suggested Citation

  • M. Ossiander & Y.-W. Huang & W. T. Chen & Z. Wang & X. Yin & Y. A. Ibrahim & M. Schultze & F. Capasso, 2021. "Slow light nanocoatings for ultrashort pulse compression," Nature Communications, Nature, vol. 12(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-26920-6
    DOI: 10.1038/s41467-021-26920-6
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    Cited by:

    1. Pengcheng Huo & Wei Chen & Zixuan Zhang & Yanzeng Zhang & Mingze Liu & Peicheng Lin & Hui Zhang & Zhaoxian Chen & Henri Lezec & Wenqi Zhu & Amit Agrawal & Chao Peng & Yanqing Lu & Ting Xu, 2024. "Observation of spatiotemporal optical vortices enabled by symmetry-breaking slanted nanograting," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    2. Wei Ting Chen & Joon-Suh Park & Justin Marchioni & Sophia Millay & Kerolos M. A. Yousef & Federico Capasso, 2023. "Dispersion-engineered metasurfaces reaching broadband 90% relative diffraction efficiency," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

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