About me
My research focuses on the development of low-loss visible photonic platforms and nonlinear optical devices, with the broader goal of enabling scalable, high-performance photonic systems for emerging applications in nonlinear and quantum photonics.
My work spans the full development chain — from fabrication process development and device design to system-level performance analysis. I have worked across several material platforms suited to visible-wavelength operation, including silicon nitride, alumina, and thin-film lithium niobate, targeting low propagation loss and broad spectral coverage.
More recently, I have been exploring the heterogeneous integration of these platforms and the application of AI-driven methods for the inverse design and optimisation of photonic structures, with a focus on enhancing nonlinear performance.
Research interests
Visible photonics
Heterogeneous integration
Nonlinear photonics
Publications
Journal Papers
- C. Stockinger, N. G. Pruiti, I. Tribaldo, J. S. Eismann, M. Sorel, and P. Banzer, “Passive silicon nitride on-chip polarimetry: precise polarization detection with imperfect components,” Adv. Photon. Nexus 5(4), 046001 (2026). DOI
- P. S. Kincaid, N. G. Pruiti, L. De Marinis, M. Sorel, G. Contestabile, and N. Andriolli, “Waveguide design for a TFLN platform at 1064 nm for applications in spacecom and spectroscopy,” Sci. Rep. 16, 1930 (2026). DOI
- C. Stockinger, J. S. Eismann, N. G. Pruiti, M. Sorel, and P. Banzer, “Passive silicon nitride integrated photonics for spatial intensity and phase sensing of visible light,” Photon. Res. 13, 1699–1708 (2025). DOI
- E. McKay, N. G. Pruiti, S. May, and M. Sorel, “High-confinement alumina waveguides with sub-dB/cm propagation losses at 450 nm,” Sci. Rep. 13, 19917 (2023). DOI
- C. De Vita, F. Toso, N. G. Pruiti, C. Klitis, G. Ferrari, M. Sorel, A. Melloni, and F. Morichetti, “Amorphous-silicon visible light detector integrated on silicon nitride waveguides,” Opt. Lett. 47, 2598–2601 (2022). DOI
- N. G. Pruiti, C. Klitis, C. Gough, S. May, and M. Sorel, “Thermo-optic coefficient of PECVD silicon-rich silicon nitride,” Opt. Lett. 45, 6242–6245 (2020). DOI
Conference Papers
- N. G. Pruiti, E. McKay, E. Di Gaetano, C. Suciu, D. Kelly, S. May, and M. Sorel, “Integrated photonic platforms for nonlinear light generation in the ultraviolet and visible regions,” [invited] International Conference on Metamaterials, Photonic Crystals and Plasmonics (META), Torremolinos, Spain, Jul. 2025.
- P. S. Kincaid, L. De Marinis, G. Contestabile, N. G. Pruiti, M. Sorel, and N. Andriolli, “Thin-film lithium niobate at 1064 nm for telecommunications and sensing,” 30th OptoElectronics and Communications Conference (OECC) / International Conference on Photonics in Switching and Computing (PSC), Sapporo, Japan, Jun. 2025.
- N. G. Pruiti, E. McKay, D. Kelly, C. Suciu, J. Oludayo Adeniran, V. Yuksektepe, R. H. Cunningham, S. Munro, E. Di Gaetano, and M. Sorel, “Photonic integrated circuits for visible light and nonlinear optics applications,” 5th International Conference on Light and Light-Based Technologies (ICLLT), Ankara, Turkey, May 2025.
- N. G. Pruiti, E. McKay, P. Reynolds, and M. Sorel, “Ultra-low loss alumina and silicon nitride waveguides in the blue through multipass lithography,” IEEE Photonics Conference (IPC), Rome, Italy, Nov. 2024.
- E. McKay, N. G. Pruiti, C. Suciu, M. Clerici, and M. Sorel, “Alumina waveguides for supercontinuum generation from near-IR to UV,” IEEE Photonics Conference (IPC), Rome, Italy, Nov. 2024.
- E. McKay, N. G. Pruiti, M. Clerici, and M. Sorel, “An ultra-low loss alumina waveguide platform for nonlinear photonics in the visible and UV,” [invited] International Conference on Metamaterials, Photonic Crystals and Plasmonics (META), Toyama, Japan, Jul. 2024.
- C. Rose, N. G. Pruiti, D. Kelly, M. Sorel, A. Casaburi, and M. Weides, “Electro-optical control and readout of superconducting devices,” IEEE International Conference on Quantum Computing and Engineering (QCE), Bellevue, WA, USA, Sep. 2023.
- E. McKay, N. G. Pruiti, S. May, and M. Sorel, “Multipass lithography of HSQ etch masks for fabrication of low-loss alumina waveguides for blue light applications,” Proc. SPIE PC12424, Integrated Optics: Devices, Materials, and Technologies XXVII, PC1242403 (2023).
- C. De Vita, F. Toso, N. G. Pruiti, C. Klitis, G. Ferrari, M. Sorel, A. Melloni, and F. Morichetti, “Monitoring visible light in silicon nitride waveguides,” ICOP 2022, O.42.
- N. G. Pruiti, C. Gough, S. May, and M. Sorel, “Optical properties of silicon-rich silicon nitride for photonic integrated circuits,” CLEO 2022, SF3O.2.
- C. De Vita, F. Toso, N. G. Pruiti, C. Klitis, G. Ferrari, M. Sorel, A. Melloni, and F. Morichetti, “Integrated amorphous-silicon photodetector on silicon nitride waveguides,” ECIO 2022, F.F.3.