☆ 4.6 Article

Nested plasmonic resonances: extraordinary enhancement of linear and nonlinear interactions

OPTICS EXPRESS (2017)

Journal

OPTICS EXPRESS

Volume 25, Issue 4, Pages 3980-3990

Publisher

OPTICAL SOC AMER

DOI: 10.1364/OE.25.003980

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Optics

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Abstract

Plasmonic resonators can provide large local electric fields when the gap between metal components is filled with an ordinary dielectric. We consider a new concept consisting of a hybrid nanoantenna obtained by introducing a resonant, plasmonic nanoparticle strategically placed inside the gap of an aptly sized metallic antenna. The system exhibits two nested, nearly overlapping plasmonic resonances whose signature is a large field enhancement at the surface and within the bulk of the plasmonic nanoparticle that leads to unusually strong, linear and nonlinear light-matter coupling. (C) 2017 Optical Society of America.

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Felemban, Laila Al-Awdah, Jahad Alghamdi, Deema AlZahrani, Nouf AlDhawi, Faisal Almalki, Maha Albeladi, Anoud Albader, Sameera AlJohani, Hani Al-Afghani, Eman Barhoush, Bader Alghamdi, Junghyun Jung, May Alrashed, Hugo Zeberg, Tomislav Maricic, Robert Frithiof, Michael Hultstrom, Miklos Lipcsey, Nicolas Tardif, Olav Rooyackers, Jonathan Grip, Oyvind Helgeland, Jennifer R. Harris, Per Magnus, Yunsung Lee, Lill-Iren S. Trogstad, Massimo Mangino, Tim D. Spector, Duncan Emma, Loukas Moutsianas, Mark J. Caulfield, Richard H. Scott, Augusto Rendon, Athanasios Kousathanas, Dorota Pasko, Susan Walker, Alex Stuckey, Christopher A. Odhams, Daniel Rhodes, Tom Fowler, Georgia Chan, Prabhu Arumugam, Daniel J. Wilson, Sarah G. Earle, Shang-Kuan Lin, Nicolas Arning, Jacob Armstrong, Justine K. Rudkin, Chris C. A. Spencer, Nils Koelling, Derrick W. Crook, David H. Wyllie, Anne Marie O'Connell, Gavin Band, Shawneequa Callier, Nicole Soranzo, Jing Hua Zhao, John Danesh, Emanuele Di Angelantonio, Adam S. Butterworth, Yan Sun, Jennifer E. Huffman, Christopher J. O'Donnell, Gina Peloso, Kelly Cho, J. Michael Gaziano, Yuk-Lam Ho, Phil Tsao, James Priest, Sandra P. Smieszek, Christos Polymeropoulos, Vasilios Polymeropoulos, Mihael H. Polymeropoulos, Bartlomiej P. Przychodzen, Israel Fernandez-Cadenas, Laia Llucia-Carol, Natalia Cullell, Elena Muino, Jara Carcel-Marquez, Anna M. Planas, Jordi Perez-Tur, Marta L. DeDiego, Lara Lloret Iglesias, Alex Soriano, Veronica Rico, Daiana Aguero, Josep L. Bedini, Carlos Domingo, Veronica Robles, Francisco Lozano, Francisca Ruiz-Jaen, Leonardo Marquez, Juan Gomez, Eliecer Coto, Guillermo M. Albaiceta, Marta Garcia-Clemente, David Dalmau, Maria J. Arranz, Beatriz Dietl, Alex Serra-Llovich, Pere Soler, Roger Colobran, Andrea Martin-Nalda, Alba Parra Martinez, David Bernardo, Aida Fiz-Lopez, Elisa Arribas, Paloma De La Cal-Sabater, Silvia Rojo, Tomas Segura, Esther Gonzalez-Villa, Gemma Serrano-Heras, Joan Marti-Fabregas, Elena Jimenez-Xarrie, Alicia de Felipe Mimbrera, Jaime Masjuan, Sebastian Garcia-Madrona, Anna Dominguez-Mayoral, Joan Montaner Villalonga, Paloma Menendez-Valladares, Daniel Chasman, Howard D. Sesso, JoAnn E. Manson, Julie E. Buring, Paul M. Ridker, Giulianini Franco, Sulggi Lee, Les Biesecker

NATURE (2022)

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Article Optics

Transient guided-mode resonance metasurfaces with phase-transition materials

Domenico de Ceglia, Marco Gandolfi, Maria Antonietta Vincenti, Andrea Tognazzi, Paolo Franceschini, Alfonso C. Cino, Gina Ambrosio, Camilla Baratto, Bohan Li, Rocio Camacho-Morales, Dragmoir N. Neshev, Costantino De Angelis

Summary: We investigate transient, photo-thermally induced meta-surface effects in a planar thin-film multilayer based on a phase-transition material. Illumination with obliquely incident, phase-coherent pulsed pumps induces a reversible temperature pattern in the phase-transition layer, leading to a transient Fano-like spectral feature. The study suggests new opportunities for dynamic control of the quality factor in photonic resonances and for light modulation and switching.

OPTICS LETTERS (2023)

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Article Physics, Applied

Extraordinary second harmonic generation modulated by divergent strain field in pressurized monolayer domes

Boqing Liu, Tanju Yildirim, Elena Blundo, Domenico de Ceglia, Ahmed Raza Khan, Zongyou Yin, Hieu T. Nguyen, Giorgio Pettinari, Marco Felici, Antonio Polimeni, Yuerui Lu

Summary: In this study, large pressurized monolayer TMD domes were fabricated using proton irradiation, and their SHG performance was comprehensively investigated. The results showed that the intensity of SHG was effectively enhanced by around two orders of magnitude at room temperature. This giant enhancement was attributed to the distinct separation distance induced by capped pressurized gas and the hemi-spherical morphology, which enabled constructive optical interference. Moreover, the unique divergent strain field in TMD domes promoted the first experimental study on the anisotropic nonlinear optical behavior based on biaxial strain conditions.

APPLIED PHYSICS REVIEWS (2023)

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Article Optics

Three orders of magnitude enhancement of second and third harmonic generation in the visible and ultraviolet ranges from plasmonic gold nanogratings

S. Mukhopadhyay, L. Rodriguez-Sune, C. Cojocaru, M. A. Vincenti, K. Hallman, G. Leo, M. Belchovski, D. de Ceglia, M. Scalora, J. Trull

Summary: We report experimental observations and numerical simulations of second and third harmonic generation from a gold nanograting, which exhibits a plasmonic resonance in the near infrared. The resonance is tunable, with a spectral position that depends on the angle of incidence. The enhancement of nonlinear optical processes produced by the field localization in the nanograting when compared with a flat gold mirror manifests itself dramatically from the ultraviolet to the visible range, suggesting potential applications in nonlinear optics of metals at the nanoscale.

APL PHOTONICS (2023)

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Article Materials Science, Multidisciplinary

Dual-Mode Polarization Control with Quasi-Bound States in the Continuum

Luca Fagiani, Luca Bolzonello, Johann Osmond, Domenico de Ceglia, Niek van Hulst, Monica Bollani, Maria Antonietta Vincenti

Summary: This study presents a silicon-based nanostructure that can control light polarization with high precision and compact size. By leveraging the properties of quasi-bound states in the continuum, the proposed meta-polarizer converts arbitrarily polarized incoming light into linearly polarized light without the use of local phase tuning mechanisms. The experimental results demonstrate its effectiveness in compensating unwanted birefringence in optical fibers and controlling polarization in complex media environments.

ADVANCED OPTICAL MATERIALS (2023)

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Article Engineering, Electrical & Electronic

Optical Limiting Sensor Based on Multilayer Optimization of Ag/VO2 Phase Change Material

C. Baratto, M. Gandolfi, A. Tognazzi, P. Franceschini, G. Ambrosio, B. Li, R. Camacho Morales, D. de Ceglia, A. C. Cino, D. N. Neshev, C. De Angelis

Summary: An infrared optical limiting sensor has been developed for laser protection. The sensor uses metallic and dielectric photonic resonators with phase-change materials, optimized deposition by RF magnetron sputtering, and silver placement between VO2 and the substrate to improve performance. The optimum thickness for VO2 and silver films has been calculated, and characterization and resistance measurements have been performed. The sensor exhibits a transmittance drop of 70% when exposed to a laser pulse excitation.

IEEE SENSORS LETTERS (2023)

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Article Computer Science, Information Systems

Wavefront Control of Millimeter Waves With a VO2-Based Reconfigurable Meta-Reflectarray

Mohammad Ali Shameli, Antonio-D Capobianco, Luca Schenato, Marco Santagiustina, Domenico De Ceglia

Summary: In this paper, a novel reconfigurable metasurface architecture is proposed and evaluated for wavefront control in millimeter-wave wireless systems. The metasurface, made of engineered silicon bricks covered with a thin film of vanadium dioxide, demonstrates anomalous reflection with 93% efficiency and 15% relative bandwidth at 60 GHz. By applying a thermal stimulus, the metasurface undergoes a phase transition in vanadium dioxide, leading to specular reflection. This device allows dynamic control of millimeter waves, making it suitable for various applications in 5G and 6G systems.

IEEE ACCESS (2023)

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Article Computer Science, Information Systems

A Reflective Metalens With Tunable Focal Length for Millimeter Waves

Mohammad Ali Shameli, Mirko Magarotto, Antonio-D Capobianco, Luca Schenato, Marco Santagiustina, Domenico De Ceglia

Summary: A novel architecture of reconfigurable, flat metalens with electrically tunable focal length is proposed for wireless communication systems operating at millimeter wave frequencies. The metalens is made of reflective silicon bricks distributed on a grounded multilayer with phase-transition material films, allowing for different focal lengths. Numerical investigation shows that the metalens can reversibly tune focal length at specific distances and remains tunable within a certain frequency range. This has significant importance for dynamically controlling the focal point of millimeter waves in wireless communications.

IEEE ACCESS (2023)

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Proceedings Paper Optics

Terahertz polarization-division multiplexing within a four-wire waveguide

J. Dong, A. Tomasino, G. Balistreri, P. You, A. Vorobiov, E. Charette, B. Le Drogoff, M. Chaker, A. Yurtsever, S. Stivala, M. A. Vincenti, C. De Angelis, D. Kip, J. Azana, R. Morandotti

Summary: We introduce a new metal-wire waveguide topology called a four-wire waveguide, which serves as both a broadband terahertz polarization-division multiplexer and a novel platform for performing independent manipulation of polarization-division multiplexed terahertz signals.

2022 PHOTONICS NORTH (PN) (2022)

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