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Strong coupling of collective intermolecular vibrations in organic materials at terahertz frequencies

Author

Listed:
  • Ran Damari

    (Tel Aviv University)

  • Omri Weinberg

    (Tel Aviv University)

  • Daniel Krotkov

    (Tel Aviv University)

  • Natalia Demina

    (Tel Aviv University)

  • Katherine Akulov

    (Tel Aviv University)

  • Adina Golombek

    (Tel Aviv University)

  • Tal Schwartz

    (Tel Aviv University)

  • Sharly Fleischer

    (Tel Aviv University)

Abstract

Several years ago, strong coupling between electronic molecular transitions and photonic structures was shown to modify the electronic landscape of the molecules and affect their chemical behavior. Since then, this concept has evolved into a new field known as polaritonic chemistry. An important ingredient in the progress of this field was the demonstration of strong coupling with intra-molecular vibrations, which enabled the modification of processes occurring at the electronic ground-state. Here we demonstrate strong coupling with collective, inter-molecular vibrations occurring in organic materials in the low-terahertz region ( $$\lesssim$$ ≲ 1012 Hz). Using a cavity filled with α-lactose molecules, we measure the temporal evolution and observe coherent Rabi oscillations, corresponding to a splitting of 68 GHz. These results take strong coupling into a new class of materials and processes, including skeletal polymer motions, protein dynamics, metal organic frameworks and other materials, in which collective, spatially extended degrees of freedom participate in the dynamics.

Suggested Citation

  • Ran Damari & Omri Weinberg & Daniel Krotkov & Natalia Demina & Katherine Akulov & Adina Golombek & Tal Schwartz & Sharly Fleischer, 2019. "Strong coupling of collective intermolecular vibrations in organic materials at terahertz frequencies," Nature Communications, Nature, vol. 10(1), pages 1-8, December.
  • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-11130-y
    DOI: 10.1038/s41467-019-11130-y
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    Cited by:

    1. Ahmed Jaber & Michael Reitz & Avinash Singh & Ali Maleki & Yongbao Xin & Brian T. Sullivan & Ksenia Dolgaleva & Robert W. Boyd & Claudiu Genes & Jean-Michel Ménard, 2024. "Hybrid architectures for terahertz molecular polaritonics," Nature Communications, Nature, vol. 15(1), pages 1-8, December.

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