ARTIFICIAL MATERIALS AND METASURFACES

Dra. Ana Díaz Rubio ​

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The group explores complex electromagnetic structures with exotic properties. Research interest include all-dielectric nanophotonics, nanostructured metamaterials and metasurfaces, scattering and diffraction. From a practical perspective, the interest is the development of advance devices with potential applications in communications systems, sensing, and energy management.

If you are interested in working with us (M. Sc & Ph. D. thesis, research visit, collaboration) and/or have your own fellowship/funding, please contact Dr. Ana Díaz Rubio.

«Experimental Comparison of Anomalous Reflectors Implemented with Local and Non-Local Design Approaches»
Sergei Kosulnikov, Ana Díaz-Rubio; Andrei Osipov, Sergei Tretyakov, IEEE Transactions on Antennas and Propagation (Early Access), 2024

«Control of the local and nonlocal electromagnetic response in all-dielectric reconfigurable metasurfaces.»
Luis Manuel Máñez-Espina, Ana Díaz-Rubio, arXiv:2405.20201, 2024

«Broadband transparent Huygens’ spaceplates»
Francisco J. Díaz-Fernández, Luis Manuel Máñez-Espina, Ana Díaz-Rubio, Viktar Asadchy, npj Nanophoton 1, 30 (2024)

«Extreme nonreciprocity in metasurfaces based on bound states in the continuum.»
Luis Manuel Máñez-Espina, Ihar Faniayeu, Viktar Asadchy, Ana Díaz-Rubio.
Advanced Optical Materials 12 (1), 2301455, 2024.

«Loss-Induced Performance Limits of All-Dielectric Metasurfaces for Terahertz Sensing.»
J. A. Álvarez-Sanchis, B. Vidal, S. A. Tretyakov, and A. Díaz-Rubio.
Physical Review Applied, 19 (1), 014009, 2023.

«Perfect-Lens Theory Enables Metasurface Reflectors for Subwavelength Focusing.»
H. Taghvaee, F. Liu, A. Díaz-Rubio, and S. Tretyakov.
Physical Review Applied 19 (1) 014004, 2023.

«On the integration of reconfigurable intelligent surfaces in real-world environments: A convenient approach for estimation reflection and transmission.»
A. Díaz-Rubio, S. Kosulnikov, and S. A. Tretyakov.
IEEE Antennas and Propagation Magazine, 64 (4), 85-95, 2022.

«Coherently time-varying metasurfaces.»
M. H. Mostafa, A. Díaz-Rubio, M. S. Mirmoosa, and S. A. Tretyakov.
Physical Review Applied 17 (6), 064048, 2022.

Ana Díaz Rubio – Group leader
Teresa Mengual Chuliá – Senior researcher
Francisco J. Díaz-Fernández – Postdoctoral researcher
Luis Manuel Mañez Espina – Pretdoctoral researcher
Oscar Rodrigo Pérez – Student ETSIT
Marcos Alberto Molina Obrién – Student ETSIT
Manuel Sellés Armendia – Student

Extreme Nonreciprocity

 


We have theoretically and numerically demonstrated the use of bound states in the continuum to enhance and control the magneto-optical response in metasurfaces. The final device configuration leverages nonreciprocity and Huygens’ condition to achieve nearly unity magnetic circular dichroism in a sub-wavelength-thin geometry. The developed phenomenological coupled-mode theory model and the proposed resonance configuration provide a new strategy for designing thin optical devices with strong magneto-optical properties.

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GRAPHENE AND LOW-DIMENSIONAL MATERIALS

Dr. Víctor Jesús Gómez Hernandez​

NOVEL NANOMATERIALS FOR NANOPHOTONICS​

Dra. Elena Pinilla​

PHOTONICS FOR PHOTOVOLTAICS

Dr. Guiller Sánchez Plaza​

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