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Antonio Ambrosio

Senior Researcher Tenured - Principal Investigator

Research Line

Vectorial Nano-imaging


CNST@PoliMi Milano


Via Pascoli 70, 20133 - Milano - Italy
+39 – 02 2399 9818
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Antonio Ambrosio was born in Ottaviano (Napoli - Italy) in 1979. He was awarded a Master degree in Condensed Matter Physics (emphasis on Laser Trapping and Light Angular Momentum) at the University of Naples Federico II in 2002. In 2006, he received his PhD degree in Applied Physics from the University of Pisa with a thesis on the development and applications of polarization contrast in near-field microscopy. This research work was under the supervision of Prof. Maria Allegrini and in part developed at the University College London, in collaboration with the group of Prof. Franco Cacialli. From December 2007 to June 2016, Antonio was researcher at the Consiglio Nazionale delle Ricerche, with his lab located in the Department of Physics of the University of Naples Federico II. There, he studied the connections between the illuminating light polarization and the structuring of azobenzene-containing polymers. In 2012, Antonio discovered the formation of spiral-shaped relief patterns on the surface of an azo-polymer that was illuminated with a holographically-produced vortex laser beam, adding new degrees of freedom in structuring azo-polymers with light. In April 2013, Antonio became Visiting Research Scholar of the John A. Paulson School of Engineering and Applied Sciences of the Harvard University, collaborating with the group of Prof. Federico Capasso in building a nano-imaging spectroscopic facility that allowed imaging of the steered surface plasmon polaritons in one- and two-dimensional metamaterials.

Since July 2016, Antonio has been Principal Scientist at the Center for Nanoscale Systems at Harvard where he has continued his research activities in nano-photonics.

From September 2019, Antonio is PI of the research line named Vectorial Nano-imaging at the Center for Nano Science and Technology (CNST) of IIT in Milan, dedicated to the development of metasurface-based optical nano-devices and new optical near-field imaging and spectroscopy techniques for 2D materials, polymers and nanostructured surfaces.

Antonio is member of the Editorial Board of Scientific Reports and member of the Materials Research Society and SPIE, and Senior Member of The Optical Society of America.


ERC Consolidator Grant (CoG), ERC-2018-COG, METAmorphoses, 2020 - 2024

Fondazione Cariplo, 2020 - 2023

Selected Publications

  1.  H. Sroor, Y.-W. Huang, B. Sephton, D. Naidoo, A. Vallés, V. Ginis, C.-W. Qiu, A. Ambrosio, F. Capasso, A. Forbes. High-purity orbital angular momentum states from a visible metasurface laser, Nature Photonics, (2020).

  2. K. Chaudhary, M. Tamagnone, X. Yin, C. M. Spägele, S. L. Oscurato, J. Li, C. Persch, R. Li, N. A. Rubin, L. A. Jauregui, K. Watanabe, T. Taniguchi, P. Kim, M. Wuttig, J. H. Edgar, A. Ambrosio, F. Capasso. Polarization Nanophotonics using phase-change materials, Nature Communications, 10:4487 (2019).

  3. Z. Zheng, N. Xu, S. L. Oscurato, M. Tamagnone, F. Sun, Y. Jiang, Y. Ke, J. Chen, W. Huang, W. L. Wilson, A. Ambrosio, S. Deng, H. Chen. A mid-infrared biaxial hyperbolic van der Waals crystal, Science Advances, 5:eav8690 (2019).

  4. E. Toninelli, B. Ndagano, A. Vallés, B. Sephton, I. Nape, A. Ambrosio, F. Capapsso, M. J. Padgett, A. Forbes. Concepts in quantumtate tomography and classical implementation with intense light: a tutorial, Advances in Optics and Photonics, 11, 67 (2019).

  5. M. Tamagnone, A. Ambrosio et al. Ultra-confined mid-infrared resonant phono polaritons in van der Waals nanostructures, Science Advances, 4:eaa7189 (2018).

  6. R.C. Devlin, A. Ambrosio, N. A. Rubin, J.P.B. Mueller, F. Capasso. Arbitrary spin-to-orbital angular momentum conversion of light, Science, 358, 896 (2017).

  7. A. Ambrosio et al. Observation of Nanoscale Refractive index contrast via photoinduced force microscopy, ACS Photonics, 4, 846 (2017).

  8. M. Khorasaninejad, A. Ambrosio, P. Kanhaiya, F. Capasso*. Broadband and chiral binary dielectric meta-holograms, Science Advances, 2:e1501258 (2016).

  9. P. Genevet, D. Wintz, A. Ambrosio, A. She, R. Blanchard, F. Capasso*, Controlled steering of Cherenkov surface plasmon wakes with a one-dimensional metamaterial, Nature Nanotechnology, 10, 804 (2015).

  10. Ambrosio et al. Light-induced spiral mass transport in azo-polymer films under vortex-beam illumination, Nature Communications 3:989 (2012).


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