S
Sylvain D. Gennaro
Researcher at Sandia National Laboratories
Publications - 31
Citations - 208
Sylvain D. Gennaro is an academic researcher from Sandia National Laboratories. The author has contributed to research in topics: Ultrashort pulse & Nonlinear optics. The author has an hindex of 4, co-authored 19 publications receiving 117 citations. Previous affiliations of Sylvain D. Gennaro include Imperial College London & Ludwig Maximilian University of Munich.
Papers
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Journal ArticleDOI
The Interplay of Symmetry and Scattering Phase in Second Harmonic Generation from Gold Nanoantennas
Sylvain D. Gennaro,Mohsen Rahmani,Vincenzo Giannini,Heykel Aouani,Themistoklis P. H. Sidiropoulos,Miguel Navarro-Cia,Stefan A. Maier,Rupert F. Oulton +7 more
TL;DR: This work explores the use of both nanoantenna symmetry and multiple harmonics to control the strength, polarization and radiation pattern of SHG from a variety of antenna configurations incorporating simple resonant elements tuned to light at both ω and 2ω.
Journal ArticleDOI
Resonant metasurfaces for generating complex quantum states
Tomas Santiago-Cruz,Sylvain D. Gennaro,Oleg Mitrofanov,Sadhvikas Addamane,John L. Reno,Igal Brener,Maria V. Chekhova +6 more
TL;DR: Santiago-Cruz et al. as mentioned in this paper used a dielectric metasurface to generate entangled photons via spontaneous parametric downconversion in semiconductor metamaterials with high quality factor, quasi-bound state in the continuum resonances.
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Spectral interferometric microscopy reveals absorption by individual optical nano-antennas from extinction phase
Sylvain D. Gennaro,Yannick Sonnefraud,Niels Verellen,Pol Van Dorpe,Victor Moshchalkov,Stefan A. Maier,Rupert F. Oulton +6 more
TL;DR: A method to extract absorption and scattering from phase and intensity measurements of extinction from a single optical nano-antenna by developing a novel spectrally resolved interferometer integrated within a confocal microscope is demonstrated.
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Double Blind Ultrafast Pulse Characterization by Mixed Frequency Generation in a Gold Antenna
TL;DR: In this paper, a gold optical nano-antenna was used to generate simultaneously four wave mixing and sum frequency generation across the tuning range of a Ti:Sapphire and Optical Parametric Oscillator (OPO) system.
Journal ArticleDOI
Nonlinear Pancharatnam−Berry Phase Metasurfacesbeyond the Dipole Approximation
Sylvain D. Gennaro,Sylvain D. Gennaro,Yi Li,Yi Li,Stefan A. Maier,Stefan A. Maier,Rupert F. Oulton +6 more
TL;DR: In this paper, a metasurface provided unique opportunities to control nonlinear processes within arrays, including frequency mixing processes via their optical modes, by using macroscopic interpretability.