Dr. Davide Rocco Profile

Dr. Davide Rocco

at Univ degli Studi di Brescia

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Author

Publications (12)

Proceedings Article | 4 October 2023 Presentation

Interferometric all-optical routing of upconverted light by dielectric metasurfaces

Attilio Zilli, Agostino Di Francescantonio, Davide Rocco, Fabrizio Conti, Vincent Vinel, Adrien Borne, Aristide Lemaître, Paolo Biagioni, Lamberto Duò, Costantino De Angelis, Giuseppe Leo, Marco Finazzi, Michele Celebrano

Proceedings Volume PC12646, PC126460Q (2023) https://doi.org/10.1117/12.2677509

KEYWORDS: Interferometry, Dielectrics, Sum frequency generation, Diffraction, Windows, Visibility, Tunable filters, Third harmonic generation, Silicon, Photons

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SPIE Journal Paper | 14 June 2021 Open Access

Infrared upconversion imaging in nonlinear metasurfaces

Maria del Rocio Camacho-Morales, Lei Xu, Nikolay Dimitrov, Lyubomir Stoyanov, Zhonghua Ma, Alexander Dreischuh, Hark Hoe Tan, Costantino De Angelis, Chennupati Jagadish, Andrey Miroshnichenko, Davide Rocco, Valerio Gili, Andrei Komar, Mykhaylo Lysevych, Fouad Karouta, Giuseppe Leo, Mohsen Rahmani, Dragomir Neshev

AP, Vol. 3, Issue 03, 036002, (June 2021) https://doi.org/10.1117/12.10.1117/1.AP.3.3.036002

KEYWORDS: Infrared imaging, Upconversion, Gallium arsenide, Nanoantennas, Infrared radiation, Image processing, Visible radiation, Signal processing, Second-harmonic generation, Nonlinear optics

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Proceedings Article | 5 March 2021 Presentation

Nonlinear meta-lens with all dielectric metasurfaces

Carlo Gigli, Giuseppe Marino, Davide Rocco, Costantino De Angelis, Alberto Artioli, Julien Claudon, Jean-Michel Gérard, Giuseppe Leo

Proceedings Volume 11695, 116950G (2021) https://doi.org/10.1117/12.2578666

KEYWORDS: Second-harmonic generation, Dielectrics, Harmonic generation, Fresnel lenses, Thermal efficiency, Sapphire, Resonators, Plasmonics, Photonics, Nonlinear metamaterials

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Proceedings Article | 1 April 2020 Presentation

Enhancing and switching harmonic generation in plasmonic and dielectric nanoantennas (Conference Presentation)

Lavinia Ghirardini, Eva Aurelia Arianna Pogna, Attilio Zilli, Paolo Biagioni, Lamberto Duò, Giovanni Pellegrini, Francesco Rusconi, Andrea Locatelli, Luca Carletti, Davide Rocco, Carlo Gigli, Giuseppe Marino, Aristide Lemaître, Andrea Mazzanti, Giuseppe Della Valle, Xiaofei Wu, Bert Hecht, Giulio Cerullo, Giuseppe Leo, Costantino De Angelis, Marco Finazzi, Michele Celebrano

Proceedings Volume 11344, 113440J (2020) https://doi.org/10.1117/12.2554643

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Nanoscale optical integration is nowadays a strategic technological challenge and the ability of generating and manipulating nonlinear optical processes in sub-wavelength volumes is pivotal to realize efficient sensing probes and photonic sources for the next-generation communication technologies. Yet, confining nonlinear processes below the diffraction limit remains a challenging task because phase-matching is not a viable approach at the nanoscale. The localized fields associated to the resonant modes of plasmonic and dielectric nanoantennas offer a route to enhance and control nonlinear processes in highly confined volumes. In my talk I will discuss two nonlinear platforms based on plasmonic and dielectric nanostructures. The first relies on a broken symmetry antenna design, which brings about an efficient second harmonic generation (SHG). We recently applied this concept to an extended array of non-centrosymmetric nanoantennas for sensing applications. I will also show the evidence of a cascaded second-order process in Third Harmonic Generation (THG) in these nanoantennas. Recently, dielectric nanoantennas emerged as an alternative to plasmonic nanostructures for nanophotonics applications, thanks to their sharp magnetic and electric Mie resonances along with the low ohmic losses in the visible/near-infrared region of the spectrum. I will present our most recent studies on the nonlinear properties of AlGaAs dielectric nanopillars. The strong localized modes along with the broken symmetry in the crystal structure of AlGaAs allow obtaining more than two orders of magnitude higher SHG efficiency with respect to plasmonic nanoantennas with similar spatial footprint and using the same pump power. I will also discuss a few key strategies we recently adopted to optically switch the SHG in these antennas even on the ultrafast time scale. Finally, I will show how to effectively engineer the sum frequency generation via the Mie resonances in these nanoantennas. These results draw a viable blueprint towards room-temperature all optical logic operation at the nanoscale.

Proceedings Article | 10 March 2020 Presentation

Optical harmonic generation from semiconductor metasurfaces (Conference Presentation)

Carlo Gigli, Giuseppe Marino, Davide Rocco, Costantino De Angelis, Grégoire Beaudoin, Konstaninos Pantzas, Gilles Patriarche, Isabelle Sagnes, Aristide Lemaître, Giuseppe Leo

Proceedings Volume 11288, 112881C (2020) https://doi.org/10.1117/12.2544535

KEYWORDS: Harmonic generation, Semiconductors, Polarization, Diffraction, Optical properties, Metamaterials, Photonic crystals, Nonlinear optics, Modulation, Light scattering

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Proceedings Article | 31 December 2019 Paper

Infrared imaging in nonlinear GaAs metasurfaces

Maria Camacho Morales, Davide Rocco, Lei Xu, Mohsen Rahmani, Valerio Flavio Gili, Andrei Komar, Nikolay Dimitrov, Lyubomir Stoyanov, Mykhaylo Lysevych, Fouad Karouta, Alexander Dreischuh, H. Hoe Tan, Giuseppe Leo, Costantino De Angelis, Chennupati Jagadish, Andrey Miroshnichenko, Dragomir Neshev

Proceedings Volume 11201, 112011S (2019) https://doi.org/10.1117/12.2541224

KEYWORDS: Infrared imaging, Gallium arsenide, Visible radiation, Image processing, Dielectrics, Nonlinear optics, Physics, Sum-frequency generation

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Proceedings Article | 30 December 2019 Paper

Sensing through the optical radiation pattern in dielectric metastructures

Davide Rocco, Andrea Tognazzi, Luca Carletti, Camilla Baratto, Costantino De Angelis

Proceedings Volume 11332, 1133202 (2019) https://doi.org/10.1117/12.2556269

KEYWORDS: Refractive index, Dielectrics, Zinc oxide, Optical sensors, Optical sensing, Sensors, Scattering, Biomedical optics, Light scattering, Particles

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Proceedings Article | 30 April 2019 Presentation + Paper

Enhancing nonlinear processes from dielectric nanoantennas: the role of the substrate

D. Rocco, C. De Angelis, D. de Ceglia, L. Carletti, M. Vincenti

Proceedings Volume 11026, 1102609 (2019) https://doi.org/10.1117/12.2520564

KEYWORDS: Dielectrics, Nanoantennas, Nonlinear dynamics, Gold, Antennas, Electromagnetic radiation, Refractive index, Nonlinear optics, Scattering, Electromagnetism

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Proceedings Article | 14 March 2018 Presentation

Engineering second-harmonic generation at the nanoscale using AlGaAs optical nanoantennas (Conference Presentation)

Lavinia Ghirardini, Valerio Gili, Davide Rocco, Giovanni Pellegrini, Luca Carletti, Lamberto Duò, Marco Finazzi, Andrea Locatelli, Ivan Favero, Giuseppe Leo, Aristide Lemaitre, Costantino De Angelis, Michele Celebrano

Proceedings Volume 10540, 105402C (2018) https://doi.org/10.1117/12.2287092

KEYWORDS: Second-harmonic generation, Nanoantennas, Nanophotonics, Harmonic generation, Dielectrics, Nano optics, Nanostructures, Plasmonics, Nanofabrication, Nonlinear frequency conversion

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Proceedings Article | 27 January 2017 Paper

Second harmonic generation in AlGaAs nanoantennas

C. De Angelis, V. Gili, L. Carletti, D. Rocco, A. Locatelli, L. Ghirardini, I. Favero, C. Gomez, A. Lemaître, M. Finazzi, M. Celebrano, G. Leo

Proceedings Volume 10111, 101111M (2017) https://doi.org/10.1117/12.2242634

KEYWORDS: Nanoantennas, Oxidation, Second-harmonic generation, Harmonic generation, Nanoparticles, Magnetism, Gallium arsenide, Aluminum, Objectives, Numerical simulations

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Proceedings Article | 19 April 2016 Paper

Enhanced second-harmonic generation driven from magnetic dipole resonance in AlGaAs nanoantennas

Luca Carletti, Davide Rocco, Andrea Locatelli, Valerio Gili, Giuseppe Leo, Costantino De Angelis

Proceedings Volume 9884, 98842B (2016) https://doi.org/10.1117/12.2225902

KEYWORDS: Second-harmonic generation, Magnetism, Nanophotonics, Plasmonics, Nanostructures, Metals, Harmonic generation, Crystals, Nonlinear crystals, Nanolithography, Nanoantennas, Scattering, Near infrared, Nonlinear optics, Resonance enhancement, Refractive index

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Proceedings Article | 13 February 2016 Paper

Enhanced second-harmonic generation from magnetic resonance in AlGaAs nanoantennas

Costantino De Angelis, Andrea Locatelli, Luca Carletti, Davide Rocco, Oleksandr Stepanenko, Giuseppe Leo, Ivan Favero, Aristide Lemaitre, Giuseppe Marino, Nicolas Olivier, Anatoly Zayats

Proceedings Volume 9755, 97551L (2016) https://doi.org/10.1117/12.2217651

KEYWORDS: Nanoantennas, Second-harmonic generation, Scattering, Magnetism, Resonance enhancement, Nanostructures, Antennas, Silicon, Nanolithography, Refractive index

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Showing 5 of 12 publications

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