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Autores principales: Feres, Flávio H., Maia, Francisco C. B., Chen, Shu, Mayer, Rafael A., Obst, Maximillian, Hatem, Osama, Wehmeier, Lukas, Nörenberg, Tobias, Queiroz, Matheus S., Mazzotti, Victor, Klopf, J. Michael, Kehr, Susanne C., Eng, Lukas M., Cadore, Alisson R., Hillenbrand, Rainer, Freitas, Raul O., Barcelos, Ingrid D.
Formato: Preprint
Publicado: 2025
Materias:
Mesoscale and Nanoscale Physics
Materials Science
Acceso en línea:https://arxiv.org/abs/2501.17340
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  • This study demonstrates that two-dimensional talc, a naturally abundant mineral, supports hyperbolic phonon-polaritons (HPhPs) at mid-infrared wavelengths, thus offering a low-cost alternative to synthetic polaritonic materials. Using scattering scanning near-field optical microscopy (s-SNOM) and synchrotron infrared nano spectroscopy (SINS), we reveal tunable HPhP modes in talc flakes of a long lifetime. These results highlight the potential of natural 2D talc crystals to constituting an effective platform for establishing scalable optoelectronic and photonic devices.

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