Strong coupling of collective intermolecular vibrations in organic materials at terahertz frequencies
| Autor: | Tal Schwartz, Katherine Akulov, Ran Damari, Natalia Demina, Sharly Fleischer, Daniel Krotkov, Omri Weinberg, Adina Golombek |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0301 basic medicine
Rabi cycle Field (physics) Terahertz radiation Chemical physics Science Degrees of freedom (statistics) Polaritons Physics::Optics General Physics and Astronomy 02 engineering and technology Article General Biochemistry Genetics and Molecular Biology 03 medical and health sciences Molecule lcsh:Science Multidisciplinary business.industry Protein dynamics Intermolecular force General Chemistry 021001 nanoscience & nanotechnology 030104 developmental biology lcsh:Q Photonics 0210 nano-technology business |
| Zdroj: | Nature Communications, Vol 10, Iss 1, Pp 1-8 (2019) Nature Communications |
| ISSN: | 2041-1723 |
| Popis: | 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 (\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\lesssim$$\end{document}≲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. Here, the authors demonstrate strong coupling between collective, terahertz inter-molecular vibrations of organic materials and a Fabry-Pérot cavity. These results extend the applicability of polaritonic chemistry to large-scale organic systems, such as biological macromolecules and polymer chains. |
| Databáze: | OpenAIRE |
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