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Autor:
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, Iván, Bercher, Adrien, Teyssier, Jérémie, Errea, Ion, Nikitin, Alexey Y., Martín-Sánchez, Javier, Kuzmenko, Alexey B., Alonso-González, Pablo
Phonon polaritons (PhPs) (light coupled to lattice vibrations) in the highly anisotropic polar layered material molybdenum trioxide (\alpha-MoO_3) are currently the focus of intense research efforts due to their extreme subwavelength field confinemen
Externí odkaz:
http://arxiv.org/abs/2408.09811
We demonstrate nanoscale optical bistability at an exceptionally low power threshold of 1 mW by leveraging Kerr-type hydrodynamic nonlinearities due to the heavily doped semiconductor's free carriers. This high nonlinearity is enabled by a strong cou
Externí odkaz:
http://arxiv.org/abs/2406.07750
Autor:
Duan, Jiahua, Martin-Luengo, Aitana Tarazaga, Lanza, Christian, Partel, Stefan, Voronin, Kirill, Tresguerres-Mata, Ana Isabel F., Álvarez-Pérez, Gonzalo, Nikitin, Alexey Y., Martín-Sánchez, J., Alonso-González, P.
Canalization is an optical phenomenon that enables unidirectional propagation of light in a natural way, i.e., without the need for predefined waveguiding designs. Predicted years ago, it was recently demonstrated using highly confined phonon polarit
Externí odkaz:
http://arxiv.org/abs/2404.14876
Autor:
Álvarez-Cuervo, J., Obst, M., Dixit, S., Carini, G., Tresguerres-Mata, A. I. F., Lanza, C., Terán-García, E., Álvarez-Pérez, G., Fernández-Álvarez, L., Diaz-Granados, K., Kowalski, R., Senerath, A. S., Mueller, N. S., Herrer, L., De Teresa, J. M., Wasserroth, S., Klopf, J. M., Beechem, T., Wolf, M., Eng, L. M., Folland, T. G., Martín-Luengo, A. Tarazaga, Martín-Sánchez, J., Kehr, S. C., Nikitin, A. Y., Caldwell, J. D., Alonso-González, P., Paarmann, A.
The emergence of a vast repository of van der Waals (vdW) materials supporting polaritons - light coupled to matter excitations - offers a plethora of different possibilities to tailor electromagnetic waves at the subwavelength-scale. In particular,
Externí odkaz:
http://arxiv.org/abs/2403.18657
Autor:
Duan, J., Álvarez-Pérez, G., Lanza, C., Tresguerres-Mata, A. I. F., Voronin, K., Capote-Robayna, N., Martín-Luengo, A. Tarazaga, Martín-Sánchez, J., Volkov, V. S., Nikitin, A. Y., Alonso-González, P.
Publikováno v:
Nat. Mater. 22, 867-872 (2023)
The assembling of twisted stacks of van der Waals (vdW) materials had led to the discovery of a profusion of remarkable physical phenomena in recent years, as it provides a means to accurately control and harness electronic band structures. This has
Externí odkaz:
http://arxiv.org/abs/2311.04173
Autor:
Voronin, Kirill V., Álvarez-Pérez, Gonzalo, Lanza, Christian, Alonso-González, Pablo, Nikitin, Alexey Y.
Polaritons in strongly anisotropic thin layers have recently captured the attention in nanophotonics because of their directional propagation at the nanoscale, which offers unique possibilities for nanooptical applications. However, exploiting the fu
Externí odkaz:
http://arxiv.org/abs/2309.12935
Autor:
Obst, Maximilian, Nörenberg, Tobias, Álvarez-Pérez, Gonzalo, de Oliveira, Thales V. A. G., Taboada-Gutiérrez, Javier, Feres, Flávio H., Kaps, Felix G., Hatem, Osama, Luferau, Andrei, Nikitin, Alexey Y., Klopf, J. Michael, Alonso-González, Pablo, Kehr, Susanne C., Eng, Lukas M.
The terahertz (THz) frequency range is key to study collective excitations in many crystals and organic molecules. However, due to the large wavelength of THz radiation, the local probing of these excitations in smaller crystalline structures or few-
Externí odkaz:
http://arxiv.org/abs/2308.03343
Autor:
J. Álvarez-Cuervo, M. Obst, S. Dixit, G. Carini, A. I. F. Tresguerres-Mata, C. Lanza, E. Terán-García, G. Álvarez-Pérez, L. F. Álvarez-Tomillo, K. Diaz-Granados, R. Kowalski, A. S. Senerath, N. S. Mueller, L. Herrer, J. M. De Teresa, S. Wasserroth, J. M. Klopf, T. Beechem, M. Wolf, L. M. Eng, T. G. Folland, A. Tarazaga Martín-Luengo, J. Martín-Sánchez, S. C. Kehr, A. Y. Nikitin, J. D. Caldwell, P. Alonso-González, A. Paarmann
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-10 (2024)
Abstract The vast repository of van der Waals (vdW) materials supporting polaritons offers numerous possibilities to tailor electromagnetic waves at the nanoscale. The development of twistoptics—the modulation of the optical properties by twisting
Externí odkaz:
https://doaj.org/article/63df4817f712449989c4da69e232fb52
Autor:
Esther Yarinely Hernández Dieguez, Adolfo Gerardo Álvarez Pérez, Jorge Rodríguez León, Hilda María Delgado Acosta
Publikováno v:
Universidad y Sociedad, Vol 16, Iss 3, Pp 61-70 (2024)
Los determinantes sociales de la salud son las circunstancias en que las personas nacen, crecen, viven, trabajan, envejecen y explican gran parte de las desigualdades en salud. La vigilancia de la salud pública es la recogida sistemática, continua,
Externí odkaz:
https://doaj.org/article/e712571f434d4535a5a2d17adf6d5966