Research interests

My research is dedicated to the development and application of advanced laser-based techniques for the coherent control of strongly correlated quantum systems. I specialize in nonlinear optics and ultrafast laser science, with extensive experience in multi-terawatt laser systems, as well as in the generation and coherent detection of phase-stable, high-field terahertz and mid-infrared pulses.

In addition, my expertise encompasses complementary steady-state spectroscopic methods for the characterization of solid-state materials, including Fourier-transform infrared (FTIR) spectroscopy, Raman spectroscopy, and X-ray scattering.

The overarching goal of my work is to explore and manipulate quantum phase transitions, ultrafast collective phenomena, and nonlinear light–matter interactions. These studies provide new insights into the nonequilibrium dynamics of correlated materials and open pathways toward emerging quantum and photonic technologies.

Research topics

  • Frustrated quantum magnets
  • Dirac materials: graphene and topological insulators
  • High-Tc superconductors
  • Strongly correlated electron systems
  • Terahertz and mid-IR metamaterials
  • Terahertz photonics
  • Nonlinear optics

Experimental techniques

  • Ultrafast spectroscopy
  • THz nonlinear spectroscopy
  • Infrared spectroscopy
  • RIXS
  • X-ray diffraction

Selected publications

Giorgianni, F. et al. Terahertz light driven coherent excitation of a zone-folded Raman-active phonon mode in the spin-ladder system α’-NaV2O // Physical Review B 111, 205138 (2025). https://doi.org/10.1103/PhysRevB.111.205138

Giorgianni, F. et al. Ultrafast frustration breaking and magnetophononic driving of singlet excitations in a quantum magnet //Physical Review B 107, 184440 (2023). https://doi.org/10.1103/PhysRevB.107.184440

Giorgianni, F. et al. Terahertz displacive excitation of a coherent Raman-active phonon in V2O3 //Comm. Physics 5, 103 (2022). https://doi.org/10.1038/s42005-022-00882-7

Giorgianni, F. et al. Leggett mode controlled by light pulses. //Nature Phys. 15, 341–346 (2019). https://www.nature.com/articles/s41567-018-0385-4

Giorgianni, F., Sakai, J. & Lupi, S. Overcoming the thermal regime for the electric-field driven Mott transition in vanadium sesquioxide. //Nature Commun. 10, 1159 (2019). https://www.nature.com/articles/s41467-019-09137-6

Giorgianni, F. et al. Supercontinuum generation in OHQ-N2S organic crystal driven by intense terahertz fields. //Optics letters 44, 4881 (2019). https://www.osapublishing.org/ol/abstract.cfm?uri=ol-44-19-4881

Giorgianni, F. et al. High-Efficiency and Low Distortion Photoacoustic Effect in 3D Graphene Sponge. //Adv. Funct. Mater. 28, 1702652 (2018). https://onlinelibrary.wiley.com/doi/full/10.1002/adfm.201702652

Giorgianni, F. et al. Strong nonlinear terahertz response induced by Dirac surface states in Bi2Se3 topological insulator. //Nature Commun. 7, 11421 (2016). http://www.nature.com/ncomms/2016/160426/ncomms11421/full/ncomms11421.h

Patent:
Transducer for electromagnetic and thermo-acoustic wave based on three dimensional graphene structure //WO/2018/050372.  https://patentscope.wipo.int/search/en/detail.jsf?docId=WO2018050372