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We are delighted to welcome you to the Metavision forum & 4th Colloquium on the Physics and Applications of Metasurfaces which will take place at the University of Brescia from April 20th to 24th, 2026. The first day (April 20th) and half of the second day (April 21st) will start with an informal young researchers’ forum – with three dedicated physics lectures and one workshop about “Navigating work-life balance in Academia” – designed to spark collaboration, ignite innovation and support early careers: METAVISION. The rest of the week (April 21st – 24th) is dedicated to the 4th Colloquium on the Physics and…
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Here we bypass phase-matching constraints by patterning subwavelength 3R-MoS2 flakes to realize non-local optical resonances. By leveraging the large field confinement and high quality factors offered by our metasurface design, we are able to achieve two orders of magnitude (140×) second-harmonic generation enhancement compared with unpatterned 3R-MoS2 flakes with the same thickness, enabling single-pass second-harmonic conversion efficiencies of 0.01% over only 160-nm-thick metastructures at relevant telecom wavelengths. This work opens new pathways towards the realization of efficient, on-chip-integrable nonlinear devices with compact footprints based on layered semiconductors, particularly relevant for integrated photonic circuitry and with potential applications in the field…
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Welcome to the Early Career Board of 2025! Check it out: https://pubs.acs.org/doi/10.1021/acs.nanolett.5c04068
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Check out the March issue here.
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Here we use spatiotemporal imaging to provide phase-matching angles, mode profiles and losses in 3R-MoS2 waveguides, showing birefringent phase matching in both multi- and single-mode waveguides. Out today in Nature Nanotechnology: Article, News and views.
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Here we realize ultracompact entangled photon sources by periodically poling 2D semiconductors (3R-MoS2), demonstrating quasi-phase-matched up- and down-conversion over micron-thick path lengths. Out today in Nature Photonics: Article. Press:• [ENG] Columbia Engineering: “Engineering Quantum Entanglement at the Nanoscale”• [ENG] We are featured on Phys.org!• [ITA] Hardware Upgrade: Semiconduttori bidimensionali e qubit, la ricerca di frontiera del Politecnico di Milano
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Dr. Chiara Trovatello is featured in Episode 56 of the Women in STEM Podcast with the one and only Dr. Hannah Roberts! 🎧 In this episode we talk about:👉 The importance of trying out new opportunities before committing to them long-term (such as moving countries).👉 How our Pusher part gets driven by the need to avoid failure so can result in overcompensating with overworking.👉 Separating your career from your identity, ensuring that successes and failures such as winning grants are not attached to your self-worth. Listen to season 2, Episode 056 on:🎙️ iTunes🎙️ Spotify🎙️ Website
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Dr. Chiara Trovatello is recipient of the Blavatnik Regional Finalist Award for Young Scientists in Physical Sciences and Engineering 2024. Nominated by Columbia University, she is recognized for the development of new nano-engineered material platforms for optical computing, a critical step on the path towards innovative imaging and information processing methods in quantum technologies. The 10.000 USD award supports young scientists who are working in physical sciences and engineering, chemical sciences, and life sciences, and additionally comes with a one-year membership to the New York Academy of Sciences. Established by the Blavatnik Family Foundation in 2007, this award is independently administered…
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Dr. Chiara Trovatello is recipient of the Optica Foundation Challenge 2024. The award supports early-career professionals with exceptional ideas to leverage optics and photonics and address global challenges. Chiara has received a US$100,000 prize for her project “Quantum-entangled Photon-pairs On-chip based on Layered Integrated Semiconductors (q-POLIS)”, which addresses the challenge of miniaturizing entangled photon sources using layered semiconductors. Chiara is currently conducting her research as a Marie Skłodowska-Curie Global Fellow between Columbia University (New York, USA) and Politecnico di Milano, with the goal of developing and characterizing novel low-dimensional platforms as ultracompact sources of quantum light. The Award Ceremony took…
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In this Perspective, we outline ongoing and future research directions in the field of nonlinear optics with layered semiconductors, with special focus on the control and tunability of their optical nonlinearities. Chiara Trovatello, Andrea Marini, Michele Cotrufo, Andrea Alù, P. James Schuck, and Giulio Cerullo. “Tunable Optical Nonlinearities in Layered Materials”. ACS Photonics.DOI: 10.1021/acsphotonics.4c00521 Link to the paper
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Chiara Trovatello 