Dynamic Modulation of Coupled Plasmon Resonances in Antimony-Doped Tin Oxide Nanorod Metamaterial by Charge Carrier Injection
T. Herzog, A. Habibpourmoghadam, N. Pannewitz, Y. Krysiak, I. Morales, S. Locmelis, A. Calà Lesina, S. Polarz
- Nano Letters, 2025 -
DOI: 10.1021/acs.nanolett.5c01485
Optical Self-Tuning of Ferroelectric Metasurfaces Infiltrated with Nematic Liquid Crystals via Photovoltaic Effect
A. Habibpourmoghadam, B. N. Chichkov, A. Calà Lesina
- Advanced Optical Materials, 2025 -
DOI: 10.1002/adom.202500532
Oxygen Vacancy Controlled Hyperbolic Metamaterial Based on Indium Tin Oxide (ITO) Nanotubes with Switchable Optical Properties
T. Herzog, A. Habibpourmoghadam, S. Locmelis, A. Calà Lesina, S. Polarz
- Advanced Functional Materials, 2024 -
DOI: 10.1002/adfm.202407552
Dynamic Nonlocal Dielectric Metasurfaces: Tuning Collective Lattice Resonances via Substrate–Superstrate Permittivity Contrast
I. Allayarov, A. B. Evlyukhin, D. J. Roth, B. Chichkov, A. V. Zayats, A. Calà Lesina
- Advanced Photonics Research, 2023 -
DOI: 10.1002/adpr.202300268
TUNABLE PLASMONIC METASURFACE FOR OPTICAL PHASED ARRAYS
A. Calà Lesina, D. Goodwill, E. Bernier, L. Ramunno, P. Berini
- IEEE JSTQE, 2021 -
DOI: 10.1109/JSTQE.2020.2991386
3D sketch of the plasmonic metasurface for phase control and beam steering. The unit cell of the metasurface (plasmonic pixel) is shown in the inset.
US patent US20210157179A1: Apparatus for plasmonic nanoantenna optical beam phase-shifter and steerer
Helium ion beam lithography and liftoff
S. Rashid, J. Walia, H. Northfield, C. Hahn, A. Olivieri, A. Calà Lesina, F. Variola, A. Weck, L. Ramunno, P. Berini
- Nano Futures, 2021 -
DOI: 10.1088/2399-1984/abfd98
Helium ion microscope (HIM) image of a gold nanoantenna array.
3D FDTD simulation vs measured transmittance for five array realizations.
Hyperpolarizability of Plasmonic Meta-Atoms in Metasurfaces
M.S. Bin-Alam, J.S. Baxter, K.M. Awan, A. Kiviniemi, Y. Mamchur, A. Calà Lesina, K.L. Tsakmakidis, M.J. Huttunen, L. Ramunno, K. Dolgaleva
- Nano Letters, 2021 -
DOI: 10.1021/acs.nanolett.0c02991
An artist’s depiction of (a) an equivalent RLC circuit diagram for the investigated nanoprisms, and (b) metasurface consisting of a random array of elongated gold nanoprisms.
On the performance of optical phased array technology for beam steering: effect of pixel limitations
A. Calà Lesina, D.J. Goodwill, É. Bernier, L. Ramunno, P. Berini
- Optics Express, 2020 -
DOI: 10.1364/OE.402894
(a) Array of radiating sources. (b) Spherical coordinates to describe beam steering in 3D.
VECTORIAL CONTROL OF NONLINEAR EMISSION VIA CHIRAL BUTTERFLY NANOANTENNAS: GENERATION OF PURE HIGH ORDER NONLINEAR VORTEX BEAMS
A. Calà Lesina, P. Berini, L. Ramunno
- Optics Express, 2017 -
DOI: 10.1364/OE.25.002569
Metasurface 3D Model
3D FDTD simulation of a metasurface of butterfly nanoantennas for THG beam structuring
Dual-Polarization Plasmonic Metasurface for Nonlinear Optics
A. Calà Lesina, L. Ramunno, P. Berini
- Optics Letters, 2015 -
DOI: 10.1364/OL.40.002874
THz radiation via difference frequency generation (DFG)
3D model of a gold metasurface embedded in GaAs. Exciting with orthogonally polarized signals at omega1 and omega2, we obtain a THz source perperdicular to the surface (Py).
3D map of the THz signal amplitude enhancement compared to the substrate without the metasurface.
