Meta-optics: From passive to active devices

Abstract: In this seminar, we will present some recent advances in the field of optical metasurfaces. In particular, in the first part of the talk, we will show how these systems can be an excellent platform to manipulate wavefronts and light-fields at subwavelength scales, and introduce some of their relevant applications and associated challenges. In the second part, we will discuss ways in which these systems can be dynamically controlled and/or interfaced with light-emitting materials to create novel optoelectronic devices.

Short biography:

Ramon Paniagua is a Tenure Scientist at the  Instituto de Estructura de la Materia (IEM‑CSIC). Before joining IEM‑CSIC last year, he spent over a decade at  the Agency for Science, Technology and Research (A*STAR) in Singapore  where he was  Principal Scientist  and Head of Department of Advanced Optical Technologies. He has devoted much of his career to advancing nanophotonic systems and their use in controlling light emission, propagation, and detection. In recognition of his contributions to optical metasurfaces, he was elected an OPTICA Fellow in 2025.

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