Caterina Vozzi is an Italian physicist, Professor and Director of the Consiglio Nazionale delle Ricerche Istituto di Fotonica e Nanotecnologie. Her research considers the ultrafast dynamics of molecules and solids. She holds a European Research Council grant to develop spectroscopic probes for complex molecules. She was awarded the Millie Dresselhaus Professorship in 2020.
Caterina Vozzi | |
|---|---|
| Alma mater | University of Milan |
| Scientific career | |
| Institutions | Consiglio Nazionale delle Ricerche Istituto di Fotonica e Nanotecnologie University of Milan National Research Council Canada Steacie Institute |
Early life and education
editVozzi was an undergraduate student and graduate researcher at the University of Milan.[1] She joined the National Research Council, where she spent four years as a postdoctoral researcher. She worked alongside Paul Corkum at the National Research Council Canada Steacie Institute for Molecular Sciences.[2]
Research and career
editIn 2005 Vozzi was made Professor of Physics at the University of Milan. She joined the Consiglio Nazionale delle Ricerche Istituto di Fotonica e Nanotecnologie in 2009, where she was made Professor in 2012.[1] She develops ultrafast techniques (X-ray and Terahertz time-domain spectroscopy) to understand biomolecules and materials.[1] Based on table-top harmonic generation, she has created new sources for ultrashort (attosecond) pulses for transient absorption spectroscopy that are in the soft X-ray range.[2] She uses table-top high harmonic generation. Measurements with these pulses give temporal and spatial information about dynamic processes, and are sensitive to specific oxidation/spin states or elements. X-ray measurements near specific absorption edges (e.g. the Carbon K-edge) provides information of the structural and electronic environment of atoms within the sample.[3]
Single-cycle coherent terahertz pulses can be generated using nonlinear crystals and infrared laser pulses. THz pulses are detected (amplitude, phase) using electro-optic systems and the Pockels effect.[4] These measurements provide information about the dielectric response (real and imaginary), uncovering physical and chemical information.[2]
Vozzi has used optical parametric amplification to create high energy mid-IR light sources for attosecond science.[2] These provide mJ energy, pulse durations equivalent to a few optical cycles and carrier–envelope phase stability, making them ideal for high harmonic generation.[5] She has exploited high harmonic generation to create bright XUV sources. She showed that high harmonic generation tomography and laser-induced electron diffraction to perform time-resolved dynamic imaging of complex molecular materials. Single attosecond pulses in the few hundred eV spectral region) can be generated by manipulating the laser polarisation.[6]
Select publications
edit- G. Sansone; E. Benedetti; F. Calegari; et al. (1 October 2006). "Isolated single-cycle attosecond pulses". Science. 314 (5798): 443–446. Bibcode:2006Sci...314..443S. doi:10.1126/SCIENCE.1132838. ISSN 0036-8075. PMID 17053142. Wikidata Q62522074.
- I. J. Sola; E. Mével; L. Elouga; et al. (23 April 2006). "Controlling attosecond electron dynamics by phase-stabilized polarization gating". Nature Physics. 2 (5): 319–322. Bibcode:2006NatPh...2..319S. doi:10.1038/NPHYS281. ISSN 1745-2473. Wikidata Q62522062.
- C. Vozzi; M. Negro; F. Calegari; G. Sansone; M. Nisoli; S. De Silvestri; S. Stagira (26 June 2011). "Generalized molecular orbital tomography". Nature Physics. 7 (10): 822–826. Bibcode:2011NatPh...7..822V. doi:10.1038/NPHYS2029. ISSN 1745-2473. Wikidata Q62521967.
References
edit- ^ a b c "Caterina Vozzi". ATTO VIII Conference. Retrieved 2024-04-07.
- ^ a b c d "Caterina Vozzi | Dipartimento di Fisica". www.fisi.polimi.it. Retrieved 2024-04-07.
- ^ Caterina Vozzi (CNR Milan) at SQS. Retrieved 2024-04-07 – via www.youtube.com.
- ^ Cinquanta, Eugenio; Pogna, Eva Arianna Aurelia; Gatto, Lorenzo; Stagira, Salvatore; Vozzi, Caterina (2023-12-31). "Charge carrier dynamics in 2D materials probed by ultrafast THzspectroscopy". Advances in Physics: X. 8 (1). doi:10.1080/23746149.2022.2120416. hdl:11311/1221794. ISSN 2374-6149.
- ^ "Physics - Caterina Vozzi". physics.aps.org. Retrieved 2024-04-07.
- ^ Sansone, G.; Benedetti, E.; Calegari, F.; Vozzi, C.; Avaldi, L.; Flammini, R.; Poletto, L.; Villoresi, P.; Altucci, C.; Velotta, R.; Stagira, S.; De Silvestri, S.; Nisoli, M. (2006-10-20). "Isolated Single-Cycle Attosecond Pulses". Science. 314 (5798): 443–446. doi:10.1126/science.1132838. ISSN 0036-8075.