Thesis Director: Prof. I.-C. Benea-Chelmus,
\r\nMicrosystems and Microelectronics doctoral program
\r\nThesis Nr. 11690
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\r\nTo take part in the public defense, please contact directly the speaker
The EPFL Photonics Chapter (EPC) is very pleased to announce and cordially invite you to our monthly ‘Pizza-Optics-Beer’ (POB) seminar on May 28th, at 18:30 in room CO 124.
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\r\nThis month we will have the pleasure to host Agostino Di Francescantonio, postdoc in the Laboratory of Nanoscience for Energy Technologies (LNET) with the presentation entitled:
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\r\n\"Nonlinear and reconfigurable optical metasurfaces\"
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\r\nFor organizational purposes (if you want to eat pizza!), please confirm your participation using this google form.
\r\nDon’t hesitate to extend the invitation to any postdoc and colleague!
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\r\nHope to see you there,
\r\nThe team of the EPFL Photonics Chapter
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\r\nAbstract:
\r\nOptical metasurfaces -- periodic arrangement of subwavelength nanostructures -- are emerging as suitable platforms for manipulation of free-space optical signals in ultrathin devices. Particular interest is attracted by resonant metasurfaces, where optical modes provide extreme confinement of light in the nanostructures volume and subsequent enhancement of light-matter interaction. This aspect is essential to boost the efficiency of various phenomena, from optical nonlinearities (e.g., multiphoton interaction like in second-harmonic generation) to reconfiguration mechanisms (i.e., dynamic modulation of the refractive index). In this talk I will survey techniques of controlling light at the nanoscale, focusing on nonlinear and reconfiguration processes, what they offer and what are their limitations.
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\r\nYou don't know POBs?
\r\nPOBs (Pizza-Optics-Beer) are monthly seminars organized by the student association EPFL Photonics Chapter.
\r\nA PhD or a postdoc gives a 20-minutes presentation about his/her research in photonics. Discussions continue informally around pizza and beers!
\r\nThe event is free and open to anyone.
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\r\nWe thank the Doctoral Program in Photonics (EPDO), the Society of Photo-Optical Instrumentation Engineers (SPIE.), Optica and SwissPhotonics for their support.
The 2026 Romandie Scaleup Cruise will bring the Swisspreneur community together on June 10 for an evening dedicated to meaningful conversations, high‑value connections and the vibrant energy of the Romandie startup ecosystem.
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\r\nFor Whom
\r\nThis edition is curated for established founders, experienced entrepreneurs, active investors and ecosystem leaders shaping Switzerland’s innovation landscape.
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\r\nEvent Highlights\r\n