Unveiling the mechanism of phonon-polariton damping in α‑MoO3
Taboada-Gutiérrez J, Zhou Y, Tresguerres-Mata AIF, Lanza C, Martínez-Suárez A, Álvarez-Pérez G, Duan J, Martín JI, Vélez M, Prieto Gonzalez I, Bercher A, Teyssier J, Errea I, Nikitin AY, Martín-Sánchez J, Kuzmenko AB, Alonso-González P. 2024. Unveiling the mechanism of phonon-polariton damping in α‑MoO3. ACS Photonics.
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Author
Taboada-Gutiérrez, Javier;
Zhou, Yixi;
Tresguerres-Mata, Ana I.F.;
Lanza, Christian;
Martínez-Suárez, Abel;
Álvarez-Pérez, Gonzalo;
Duan, Jiahua;
Martín, José Ignacio;
Vélez, María;
Prieto Gonzalez, IvanISTA
;
Bercher, Adrien;
Teyssier, Jérémie
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Abstract
Phonon polaritons (PhPs), light coupled to lattice vibrations, in the highly anisotropic polar layered material molybdenum trioxide (α-MoO3) are currently the focus of intense research efforts due to their extreme subwavelength field confinement, directional propagation, and unprecedented low losses. Nevertheless, prior research has primarily concentrated on exploiting the squeezing and steering capabilities of α-MoO3 PhPs, without inquiring much into the dominant microscopic mechanism that determines their long lifetimes, which is key for their implementation in nanophotonic applications. This study delves into the fundamental processes that govern PhP damping in α-MoO3 by combining ab initio calculations with scattering-type scanning near-field optical microscopy (s-SNOM) and Fourier transform infrared (FTIR) spectroscopy measurements across a broad temperature range (8–300 K). The remarkable agreement between our theoretical predictions and experimental observations allows us to identify third-order anharmonic phonon–phonon scattering as the main damping mechanism of α-MoO3 PhPs. These findings shed light on the fundamental limits of low-loss PhPs, which is a crucial factor for assessing their implementation into nanophotonic devices.
Publishing Year
Date Published
2024-08-23
Journal Title
ACS Photonics
Acknowledgement
Funding Sources ─ A.I.F.T.-M. and G.Á.-P. acknowledge support through the Severo Ochoa program from the Government of the Principality of Asturias (references PA-21-PF-BP20-117 and PA20-PF-BP19-053, respectively). A.B.K. and J.T.-G. acknowledge support from the Swiss National Science Foundation (grant # 200020_201096). J.M.-S. acknowledges financial support from the Ramón y Cajal Program of the Government of Spain and FSE (RYC2018-026196-I), the Spanish Ministry of Science and Innovation (State Plan for Scientific and Technical Research and Innovation grant number PID2019-110308GA-I00/AEI/10.13039/501100011033) and project PCI2022-132953 funded by MCIN/AEI/10.13039/501100011033 and the EU “NextGenerationEU”/PRTR”. P.A.-G. acknowledges support from the European Research Council under starting grant no. 715496, 2DNANOPTICA and the Spanish Ministry of Science and Innovation (State Plan for Scientific and Technical Research and Innovation grant number PID2019-111156GB-I00). A.Y.N. acknowledges the Spanish Ministry of Science and Innovation (grant PID2020-115221GB-C42) and the Basque Department of Education (grant PIBA-2023-1-0007). M.V. and J.I.M. acknowledge support by Spanish MCIN/AEI/10.13039/501100011033/FEDER, UE under grant PID2022-136784NB and by Asturias FICYT under grant AYUD/2021/51185 with the support of FEDER funds. I.E. acknowledges funding from the Spanish Ministry of Science and Innovation (Grant No. PID2022-142861NA-I00) and the Department of Education, Universities, and Research of the Eusko Jaurlaritza and the University of the Basque Country UPV/EHU (Grant No. IT1527-22). J. Duan acknowledges the support from the Beijing Natural Science Foundation (Grant No. Z240005), and National Natural Science Foundation of China.
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Cite this
Taboada-Gutiérrez J, Zhou Y, Tresguerres-Mata AIF, et al. Unveiling the mechanism of phonon-polariton damping in α‑MoO3. ACS Photonics. 2024. doi:10.1021/acsphotonics.4c00485
Taboada-Gutiérrez, J., Zhou, Y., Tresguerres-Mata, A. I. F., Lanza, C., Martínez-Suárez, A., Álvarez-Pérez, G., … Alonso-González, P. (2024). Unveiling the mechanism of phonon-polariton damping in α‑MoO3. ACS Photonics. American Chemical Society. https://doi.org/10.1021/acsphotonics.4c00485
Taboada-Gutiérrez, Javier, Yixi Zhou, Ana I.F. Tresguerres-Mata, Christian Lanza, Abel Martínez-Suárez, Gonzalo Álvarez-Pérez, Jiahua Duan, et al. “Unveiling the Mechanism of Phonon-Polariton Damping in Α‑MoO3.” ACS Photonics. American Chemical Society, 2024. https://doi.org/10.1021/acsphotonics.4c00485.
J. Taboada-Gutiérrez et al., “Unveiling the mechanism of phonon-polariton damping in α‑MoO3,” ACS Photonics. American Chemical Society, 2024.
Taboada-Gutiérrez J, Zhou Y, Tresguerres-Mata AIF, Lanza C, Martínez-Suárez A, Álvarez-Pérez G, Duan J, Martín JI, Vélez M, Prieto Gonzalez I, Bercher A, Teyssier J, Errea I, Nikitin AY, Martín-Sánchez J, Kuzmenko AB, Alonso-González P. 2024. Unveiling the mechanism of phonon-polariton damping in α‑MoO3. ACS Photonics.
Taboada-Gutiérrez, Javier, et al. “Unveiling the Mechanism of Phonon-Polariton Damping in Α‑MoO3.” ACS Photonics, American Chemical Society, 2024, doi:10.1021/acsphotonics.4c00485.
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arXiv 2408.09811