Dr. Caterina Vozzi Profile

Dr. Caterina Vozzi

Researcher at CNR-Istituto di Fotonica e Nanotecnologie

SPIE Involvement:

Author

Proceedings Article | 13 March 2024 Presentation

Integrated microfluidic devices for high-order harmonic generation

R. Martínez Vázquez, A. Azzolin, G. Giovannetti, G. Fan, M. S. Ahsan, S. Rockenstein, L. Colaizzi, E. Maansson, D. Faccialà, F. Frassetto, A. Ciriolo, C. Manzoni, M. Devetta, L. Poletto, S. Stagira, C. Vozzi, V. Wanie, A. Trabattoni, F. Calegari, R. Osellame

Proceedings Volume PC12869, PC128690M (2024) https://doi.org/10.1117/12.3001819

KEYWORDS: Microfluidics, High harmonic generation, Extreme ultraviolet, X-rays, Harmonic generation, X-ray technology, Wet etching, Wave propagation, Ultrafast phenomena, Ultrafast laser spectroscopy

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Proceedings Article | 4 March 2019 Presentation

Femtosecond laser micromachining of glass chips for high-order harmonic generation (Conference Presentation)

Rebeca Martínez Vázquez, Anna Ciriolo, Gabriele Crippa, Caterina Vozzi, Salvatore Stagira, Roberto Osellame

Proceedings Volume 10908, 1090812 (2019) https://doi.org/10.1117/12.2508815

KEYWORDS: Femtosecond laser micromachining, Glasses, High harmonic generation, Extreme ultraviolet, Microfluidics, Fabrication, Hollow waveguides, UV-Vis spectroscopy, Spectroscopes, Optical alignment

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Proceedings Article | 16 February 2018 Presentation + Paper

High-energy OPA stability control with adaptive lenses

Matteo Negro, Martino Quintavalla, Jacopo Mocci, Riccardo Muradore, Anna Ciriolo, Michele Devetta, Salvatore Stagira, Caterina Vozzi, Stefano Bonora

Proceedings Volume 10518, 105181B (2018) https://doi.org/10.1117/12.2289940

KEYWORDS: Adaptive optics, Lenses, Wavefront sensors, Telescopes, Control systems, Wavefronts, Adaptive control, Software development, Sapphire lasers, Laser systems engineering

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Proceedings Article | 23 February 2017 Presentation + Paper

Ultrafast carrier dynamics of epitaxial silicene

Eugenio Cinquanta, Guido Fratesi, Stefano dal Conte, Carlo Grazianetti, Francesco Scotognella, Salvatore Stagira, Caterina Vozzi, Giovanni Onida, Alessandro Molle

Proceedings Volume 10102, 101020J (2017) https://doi.org/10.1117/12.2252009

KEYWORDS: Ultrafast phenomena, Carrier dynamics, Dielectrics, Field effect transistors, Silver, Interfaces, Absorption, Spectroscopy, Amorphous silicon, Absorbance, Raman spectroscopy

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Proceedings Article | 3 May 2013 Paper

Development of active gratings for the spectral selection of ultrafast pulses

Fabio Frassetto, Stefano Bonora, Giovanna Brusatin, Gioia Della Giustina, Salvatore Stagira, Caterina Vozzi, Erika Zanchetta, Luca Poletto

Proceedings Volume 8778, 87780C (2013) https://doi.org/10.1117/12.2019980

KEYWORDS: Diffraction gratings, Monochromators, Ultrafast phenomena, Extreme ultraviolet, Mirrors, Diffraction, Spherical lenses, Optical design, Vignetting, Interferometers

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We present the design, realization and characterization of active deformable gratings for extreme-ultraviolet monochromators for ultrashort pulses. The core device consists of a bimorph deformable mirror on the top of which a diffraction grating with laminar profile is realized by UV lithography. The curvature radius of the grating substrate can be varied changing the voltage applied to an underlying piezo-actuator. The advantage of this technology is to provide gratings with high optical quality, robust, compatible with any coating deposition and realized with only vacuumcompatible materials. We present the characterization of a time-delay compensated monochromator realized with these devices, showing that the active grating can optimize the beam focusing through its rotation and deformation. Two equal active gratings have been mounted in a compensated configuration to realize a grazing-incidence double-grating monochromator for the spectral selection of ultrashort pulses and the simultaneous compensation of the pulse front-tilt given by the diffraction. The wavelength scanning is performed by the first grating through rotation. The radiation is focused on the intermediate plane, where a slit carries out the spectral selection. Finally, the second grating compensates for the pulse front-tilt given by the first one. The spectral focusing of both gratings is maintained at the different wavelengths through the variation of the radii of curvature. The instrument has been tested with a Ti:Sa laser operated at 800 nm. We have been able to demonstrate that the double-grating configuration with active gratings compensates for the pulse front-tilt, that is reduced from 1 ps at the intermediate plane to 100 fs at the output. The final value is limited by the group delay dispersion of the monochromator within the 10-nm bandwidth of the laser. A configuration for the selection on XUV ultrashort pulses has been theoretically studied and the expected performances presented. Active gratings may be considered as a cheaper and more flexible alternative to standard gratings for the realization of extremeultraviolet monochromators for ultrafast pulses, such as free-electron lasers and high-order laser harmonics.

Proceedings Article | 19 May 2011 Paper

Isolated attosecond pulses: generation and application to molecular science

M. Lucchini, F. Calegari, K. Kim, C. Vozzi, S. Stagira, G. Sansone, M. Nisoli

Proceedings Volume 8071, 80710H (2011) https://doi.org/10.1117/12.887379

KEYWORDS: Extreme ultraviolet, Ionization, Polarization, Chemical species, Molecules, Xenon, 3D modeling, Infrared radiation, Bandpass filters, High harmonic generation

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Proceedings Article | 27 August 2010 Paper

Optical properties of carbon coatings for extreme-ultraviolet high-order laser harmonics

S. Coraggia, F. Frassetto, L. Poletto, J. Aznarez, J. Larruquert, J. Mendez, M. Negro, S. Stagira, C. Vozzi

Proceedings Volume 7802, 780208 (2010) https://doi.org/10.1117/12.861597

KEYWORDS: Extreme ultraviolet, Reflectivity, Carbon, Gold, Optical coatings, Monochromators, Laser damage threshold, Polarization, Grazing incidence, Mirrors

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Proceedings Article | 1 June 2004 Paper

Adaptive wavefront control based on genetic algorithm for the enhancement of high-order harmonic generation driven by two-cycle laser pulses

Stefano Bonora, Michele Pascolini, Luca Poletto, G. Sansone, S. Stagira, Caterina Vozzi, Mauro Nisoli, Paolo Villoresi, Giuseppe Tondello, Sandro De Silvestri

Proceedings Volume 5333, (2004) https://doi.org/10.1117/12.529263

KEYWORDS: Wavefronts, Genetic algorithms, Mirrors, Actuators, Neon, Optimization (mathematics), Pulsed laser operation, Adaptive control, Sensors, Deformable mirrors

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Showing 5 of 8 publications

Conference Committee Involvement (1)

Ultrafast Optics 2017

8 October 2017 | Jackson Hole, Wyoming, United States

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