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Gabbani A, Sangregorio C, Tandon B, Nag A, Gurioli M, Pineider F. Magnetoplasmonics beyond Metals: Ultrahigh Sensing Performance in Transparent Conductive Oxide Nanocrystals. NANO LETTERS 2022; 22:9036-9044. [PMID: 36346871 PMCID: PMC9706655 DOI: 10.1021/acs.nanolett.2c03383] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 10/30/2022] [Indexed: 06/16/2023]
Abstract
Active modulation of the plasmonic response is at the forefront of today's research in nano-optics. For a fast and reversible modulation, external magnetic fields are among the most promising approaches. However, fundamental limitations of metals hamper the applicability of magnetoplasmonics in real-life active devices. While improved magnetic modulation is achievable using ferromagnetic or ferromagnetic-noble metal hybrid nanostructures, these suffer from severely broadened plasmonic response, ultimately decreasing their performance. Here we propose a paradigm shift in the choice of materials, demonstrating for the first time the outstanding magnetoplasmonic performance of transparent conductive oxide nanocrystals with plasmon resonance in the near-infrared. We report the highest magneto-optical response for a nonmagnetic plasmonic material employing F- and In-codoped CdO nanocrystals, due to the low carrier effective mass and the reduced plasmon line width. The performance of state-of-the-art ferromagnetic nanostructures in magnetoplasmonic refractometric sensing experiments are exceeded, challenging current best-in-class localized plasmon-based approaches.
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Affiliation(s)
- Alessio Gabbani
- INSTM
and Department of Chemistry and Industrial Chemistry, Università di Pisa, via G. Moruzzi 13, 56124Pisa, Italy
- Department
of Physics and Astronomy, Università
degli Studi di Firenze, via Sansone 1, 50019Sesto Fiorentino, FI, Italy
- CNR-ICCOM, Via Madonna
del Piano 10, 50019Sesto Fiorentino, FI, Italy
| | - Claudio Sangregorio
- CNR-ICCOM, Via Madonna
del Piano 10, 50019Sesto Fiorentino, FI, Italy
- INSTM
and Department of Chemistry “U. Schiff”, Università degli Studi di Firenze, via della Lastruccia 3, 50019Sesto Fiorentino, FI, Italy
| | - Bharat Tandon
- Department
of Chemistry, Indian Institute of Science
Education and Research (IISER), Pune411008, India
| | - Angshuman Nag
- Department
of Chemistry, Indian Institute of Science
Education and Research (IISER), Pune411008, India
| | - Massimo Gurioli
- Department
of Physics and Astronomy, Università
degli Studi di Firenze, via Sansone 1, 50019Sesto Fiorentino, FI, Italy
| | - Francesco Pineider
- INSTM
and Department of Chemistry and Industrial Chemistry, Università di Pisa, via G. Moruzzi 13, 56124Pisa, Italy
- Department
of Physics and Astronomy, Università
degli Studi di Firenze, via Sansone 1, 50019Sesto Fiorentino, FI, Italy
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Kuttruff J, Gabbani A, Petrucci G, Zhao Y, Iarossi M, Pedrueza-Villalmanzo E, Dmitriev A, Parracino A, Strangi G, De Angelis F, Brida D, Pineider F, Maccaferri N. Magneto-Optical Activity in Nonmagnetic Hyperbolic Nanoparticles. PHYSICAL REVIEW LETTERS 2021; 127:217402. [PMID: 34860084 DOI: 10.1103/physrevlett.127.217402] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 09/23/2021] [Indexed: 06/13/2023]
Abstract
Active nanophotonics can be realized by controlling the optical properties of materials with external magnetic fields. Here, we explore the influence of optical anisotropy on the magneto-optical activity in nonmagnetic hyperbolic nanoparticles. We demonstrate that the magneto-optical response is driven by the hyperbolic dispersion via the coupling of metallic-induced electric and dielectric-induced magnetic dipolar optical modes with static magnetic fields. Magnetic circular dichroism experiments confirm the theoretical predictions and reveal tunable magneto-optical activity across the visible and near infrared spectral range.
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Affiliation(s)
- Joel Kuttruff
- Department of Physics and Materials Science, University of Luxembourg, 162a avenue de la Faincerie, 1511, Luxembourg, Luxembourg
- Department of Physics, University of Konstanz, Universitaetsstrasse 10, 78464 Konstanz, Germany
| | - Alessio Gabbani
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Giuseppe Moruzzi 13, 56124, Pisa, Italy
| | - Gaia Petrucci
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Giuseppe Moruzzi 13, 56124, Pisa, Italy
| | - Yingqi Zhao
- Plasmon Nanotechnologies Unit, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
| | - Marzia Iarossi
- Plasmon Nanotechnologies Unit, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
- Dipartimento di Informatica, Bioingegneria, Robotica e Ingegneria dei Sistemi (DIBRIS). Università degli Studi di Genova, Via Balbi 5, 16126 Genova, Italy
| | - Esteban Pedrueza-Villalmanzo
- Department of Physics, University of Gothenburg, Universitetsplatsen 1, 405 30, Gothenburg, Sweden
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Kemigården 4, 412 96 Göteborg, Sweden
| | - Alexandre Dmitriev
- Department of Physics, University of Gothenburg, Universitetsplatsen 1, 405 30, Gothenburg, Sweden
| | - Antonietta Parracino
- Department of Chemistry, Uppsala University, Husargatan 3, 752 37, Uppsala, Sweden
| | - Giuseppe Strangi
- Department of Physics, Case Western Reserve University, 10600 Euclid Avenue, 44106, Cleveland, Ohio, USA
- CNR-NANOTEC Istituto di Nanotecnologia and Department of Physics, University of Calabria, Via Pietro Bucci 87036, Rende, Italy
| | - Francesco De Angelis
- Plasmon Nanotechnologies Unit, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
| | - Daniele Brida
- Department of Physics and Materials Science, University of Luxembourg, 162a avenue de la Faincerie, 1511, Luxembourg, Luxembourg
| | - Francesco Pineider
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Giuseppe Moruzzi 13, 56124, Pisa, Italy
| | - Nicolò Maccaferri
- Department of Physics and Materials Science, University of Luxembourg, 162a avenue de la Faincerie, 1511, Luxembourg, Luxembourg
- Department of Physics, Umeå University, Linnaeus väg 20, 907 36 Umeå, Sweden
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Gabbani A, Fantechi E, Petrucci G, Campo G, de Julián Fernández C, Ghigna P, Sorace L, Bonanni V, Gurioli M, Sangregorio C, Pineider F. Dielectric Effects in FeO x -Coated Au Nanoparticles Boost the Magnetoplasmonic Response: Implications for Active Plasmonic Devices. ACS APPLIED NANO MATERIALS 2021; 4:1057-1066. [PMID: 33778418 PMCID: PMC7992377 DOI: 10.1021/acsanm.0c02588] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 12/31/2020] [Indexed: 05/15/2023]
Abstract
Plasmon resonance modulation with an external magnetic field (magnetoplasmonics) represents a promising route for the improvement of the sensitivity of plasmon-based refractometric sensing. To this purpose, an accurate material choice is needed to realize hybrid nanostructures with an improved magnetoplasmonic response. In this work, we prepared core@shell nanostructures made of an 8 nm Au core surrounded by an ultrathin iron oxide shell (≤1 nm). The presence of the iron oxide shell was found to significantly enhance the magneto-optical response of the noble metal in the localized surface plasmon region, compared with uncoated Au nanoparticles. With the support of an analytical model, we ascribed the origin of the enhancement to the shell-induced increase in the dielectric permittivity around the Au core. The experiment points out the importance of the spectral position of the plasmonic resonance in determining the magnitude of the magnetoplasmonic response. Moreover, the analytical model proposed here represents a powerful predictive tool for the quantification of the magnetoplasmonic effect based on resonance position engineering, which has significant implications for the design of active magnetoplasmonic devices.
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Affiliation(s)
- Alessio Gabbani
- INSTM
and Department of Chemistry and Industrial Chemistry, Università di Pisa, via G. Moruzzi 13, 56124 Pisa, Italy
| | - Elvira Fantechi
- INSTM
and Department of Chemistry and Industrial Chemistry, Università di Pisa, via G. Moruzzi 13, 56124 Pisa, Italy
| | - Gaia Petrucci
- INSTM
and Department of Chemistry and Industrial Chemistry, Università di Pisa, via G. Moruzzi 13, 56124 Pisa, Italy
| | - Giulio Campo
- INSTM
and Department of Chemistry “U. Schiff”, Università degli Studi di Firenze, via della Lastruccia 3, 50019 Sesto Fiorentino (FI), Italy
| | | | - Paolo Ghigna
- Department
of Chemistry, Università di Pavia, Via T. Taramelli 12, 27100 Pavia, Italy
| | - Lorenzo Sorace
- INSTM
and Department of Chemistry “U. Schiff”, Università degli Studi di Firenze, via della Lastruccia 3, 50019 Sesto Fiorentino (FI), Italy
| | - Valentina Bonanni
- INSTM
and Department of Chemistry “U. Schiff”, Università degli Studi di Firenze, via della Lastruccia 3, 50019 Sesto Fiorentino (FI), Italy
| | - Massimo Gurioli
- Department
of Physics and Astronomy, Università
degli Studi di Firenze, via G. Sansone 1, 50019 Sesto Fiorentino (FI), Italy
| | - Claudio Sangregorio
- INSTM
and Department of Chemistry “U. Schiff”, Università degli Studi di Firenze, via della Lastruccia 3, 50019 Sesto Fiorentino (FI), Italy
- CNR-ICCOM, Via Madonna del Piano 10, 50019 Sesto Fiorentino (FI), Italy
| | - Francesco Pineider
- INSTM
and Department of Chemistry and Industrial Chemistry, Università di Pisa, via G. Moruzzi 13, 56124 Pisa, Italy
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Optical detection for magnetic field using Ni-subwavelength grating on SiO 2/thin-film Ag/glass structure. Sci Rep 2020; 10:19298. [PMID: 33168843 PMCID: PMC7653930 DOI: 10.1038/s41598-020-74202-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 09/28/2020] [Indexed: 11/25/2022] Open
Abstract
An optical sensor for magnetic field detection using Ni-subwavelength grating (SWG) on SiO2/Ag-thin-film/glass substrates was experimentally developed on the basis of the re-radiation condition of surface-plasmon-polaritons (SPPs) at Ag surfaces. The fabricated sample showed two dips in the reflection spectra associated with SPP excitation, and the optical response exhibited good agreement with that simulated by the finite-difference time-domain method. The reflectivity at one of the dip wavelengths varied minimally with the application of the magnetic field, whereas that at the other dip wavelength significantly decreased owing to the large electric field overlap of SPP with the magnetized Ni-SWG. As a result, a magnetic field on the order of a few mT could be detected with a simple normal-incidence optical system.
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