Ultrafast temporal engineering of optical properties using terahertz light

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A photonic time crystal is an optical system of which properties such as its refractive index are modulated strongly and rapidly over time. One has now been obtained all-optically by delivering an intense terahertz light wave onto a material with a specialized microstructure that hosts collective waves of electrons known as plasmons.

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References

  1. Joannopoulos, J. D., Johnson, S. G., Winn, J. N. & Meade, R. D. Photonic Crystals: Molding the Flow of Light 2nd edn (Princeton Univ. Press, 2008).

    Google Scholar 

  2. Asgari, M. M. et al. Adv. Opt. Photon. 16, 958–1063 (2024).

    Article  Google Scholar 

  3. Aupiais, I. et al. Nature Commun. 14, 7645 (2023).

    Article  PubMed  Google Scholar 

  4. Khurgin, J. B., Clerici, M. & Kinsey, N. Laser Photon. Rev. 15, 2000291 (2021).

    Article  Google Scholar 

  5. Tonouchi, M. Nature Photon. 1, 97–105 (2007).

    Article  Google Scholar 

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