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Bruno V, DeVault C, Vezzoli S, Kudyshev Z, Huq T, Mignuzzi S, Jacassi A, Saha S, Shah YD, Maier SA, Cumming DRS, Boltasseva A, Ferrera M, Clerici M, Faccio D, Sapienza R, Shalaev VM. Negative Refraction in Time-Varying Strongly Coupled Plasmonic-Antenna-Epsilon-Near-Zero Systems. Phys Rev Lett 2020; 124:043902. [PMID: 32058792 DOI: 10.1103/physrevlett.124.043902] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Indexed: 06/10/2023]
Abstract
Time-varying metasurfaces are emerging as a powerful instrument for the dynamical control of the electromagnetic properties of a propagating wave. Here we demonstrate an efficient time-varying metasurface based on plasmonic nano-antennas strongly coupled to an epsilon-near-zero (ENZ) deeply subwavelength film. The plasmonic resonance of the metal resonators strongly interacts with the optical ENZ modes, providing a Rabi level spitting of ∼30%. Optical pumping at frequency ω induces a nonlinear polarization oscillating at 2ω responsible for an efficient generation of a phase conjugate and a negative refracted beam with a conversion efficiency that is more than 4 orders of magnitude greater compared to the bare ENZ film. The introduction of a strongly coupled plasmonic system therefore provides a simple and effective route towards the implementation of ENZ physics at the nanoscale.
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Affiliation(s)
- V Bruno
- School of Physics and Astronomy, University of Glasgow, G12 8QQ Glasgow, United Kingdom
| | - C DeVault
- Purdue Quantum Science and Engineering Institute, Purdue University 1205 West State Street, West Lafayette, Indiana 47907, USA
- School of Electrical and Computer Engineering and Birck Nanotechnology Center, Purdue University, 1205 West State Street, West Lafayette, Indiana 47907, USA
| | - S Vezzoli
- The Blackett Laboratory, Department of Physics, Imperial College London, London SW7 2BW, United Kingdom
| | - Z Kudyshev
- Purdue Quantum Science and Engineering Institute, Purdue University 1205 West State Street, West Lafayette, Indiana 47907, USA
- School of Electrical and Computer Engineering and Birck Nanotechnology Center, Purdue University, 1205 West State Street, West Lafayette, Indiana 47907, USA
| | - T Huq
- The Blackett Laboratory, Department of Physics, Imperial College London, London SW7 2BW, United Kingdom
| | - S Mignuzzi
- The Blackett Laboratory, Department of Physics, Imperial College London, London SW7 2BW, United Kingdom
| | - A Jacassi
- The Blackett Laboratory, Department of Physics, Imperial College London, London SW7 2BW, United Kingdom
| | - S Saha
- Purdue Quantum Science and Engineering Institute, Purdue University 1205 West State Street, West Lafayette, Indiana 47907, USA
- School of Electrical and Computer Engineering and Birck Nanotechnology Center, Purdue University, 1205 West State Street, West Lafayette, Indiana 47907, USA
| | - Y D Shah
- School of Physics and Astronomy, University of Glasgow, G12 8QQ Glasgow, United Kingdom
| | - S A Maier
- The Blackett Laboratory, Department of Physics, Imperial College London, London SW7 2BW, United Kingdom
- Chair in Hybrid Nanosystems, Nanoinstitute Munich, Faculty of Physics, Ludwig-Maxilimians-Universitat München, 80539 München, Germany
| | - D R S Cumming
- School of Engineering, University of Glasgow, G12 8LT Glasgow, United Kingdom
| | - A Boltasseva
- Purdue Quantum Science and Engineering Institute, Purdue University 1205 West State Street, West Lafayette, Indiana 47907, USA
- School of Electrical and Computer Engineering and Birck Nanotechnology Center, Purdue University, 1205 West State Street, West Lafayette, Indiana 47907, USA
| | - M Ferrera
- Institute of Photonics and Quantum Sciences, Heriot-Watt University, EH14 4AS Edinburgh, United Kingdom
| | - M Clerici
- School of Engineering, University of Glasgow, G12 8LT Glasgow, United Kingdom
| | - D Faccio
- School of Physics and Astronomy, University of Glasgow, G12 8QQ Glasgow, United Kingdom
| | - R Sapienza
- The Blackett Laboratory, Department of Physics, Imperial College London, London SW7 2BW, United Kingdom
| | - V M Shalaev
- Purdue Quantum Science and Engineering Institute, Purdue University 1205 West State Street, West Lafayette, Indiana 47907, USA
- School of Electrical and Computer Engineering and Birck Nanotechnology Center, Purdue University, 1205 West State Street, West Lafayette, Indiana 47907, USA
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2
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Manceau M, Vezzoli S, Glorieux Q, Giacobino E, Carbone L, De Vittorio M, Hermier JP, Bramati A. CdSe/CdS Dot-in-Rods Nanocrystals Fast Blinking Dynamics. Chemphyschem 2018; 19:3288-3295. [PMID: 30281885 DOI: 10.1002/cphc.201800694] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Indexed: 11/07/2022]
Abstract
Analyzing the autocorrelation function of the fluorescence intensity, we demonstrate that these nanoemitters are characterized by a short value of the mean duration of bright periods (ten to a few hundreds of microseconds). The comparison of the results obtained for samples with different geometries shows that not only the shell thickness is crucial but also the shape of the dot-in-rods. Increasing the shell aspect ratio results in shorter bright periods suggesting that surface traps impact the stability of the fluorescence intensity.
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Affiliation(s)
- M Manceau
- Laboratoire Kastler Brossel, Sorbonne Université, CNRS, ENS-PSL Research University, Collège de France, 4, place Jussieu Case 74, F-75005, Paris, France
- Université Paris 13, Sorbonne Paris Cité, Laboratoire de Physique des Lasers, F-93430, Villetaneuse, France
| | - S Vezzoli
- The Blackett Laboratory, Department of Physics, Imperial College London, London, SW72AZ, United Kingdom
| | - Q Glorieux
- Laboratoire Kastler Brossel, Sorbonne Université, CNRS, ENS-PSL Research University, Collège de France, 4, place Jussieu Case 74, F-75005, Paris, France
| | - E Giacobino
- Laboratoire Kastler Brossel, Sorbonne Université, CNRS, ENS-PSL Research, University, Collège de France, 4, place Jussieu Case 74, F-75005, Paris, France
| | - L Carbone
- CNR NANOTEC-Institute of Nanotechnology c/o Campus Ecotekne, University of Salento, Via Monteroni -, 73100, Lecce, Italy
| | - M De Vittorio
- Istituto Italiano di Tecnologia (IIT) Center for Bio-Molecular Nanotechnologies Via Barsanti sn, 73010 Arnesano (Lecce), Italy, CNR NANOTEC-Institute of Nanotechnology c/o Campus Ecotekne, University of Salento, Via Monteroni -, 73100, Lecce, Italy
| | - J-P Hermier
- Groupe d'Etude de la Matière Condensée (GEMaC), Université de Versailles Saint-Quentin-en-Yvelines, CNRS UMR 8635, Université Paris-Saclay, 45 Avenue des Etats-Unis, 78035, Versailles Cedex, France
| | - A Bramati
- Laboratoire Kastler Brossel, Sorbonne Université, CNRS, ENS-PSL Research University, Collège de France, 4, place Jussieu Case 74, F-75005, Paris, France
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Scuri M, Vestbo J, Papi A, Corradi M, Spinola M, Montagna I, Francisco C, Cohuet G, Vezzoli S, Muraro A, Petruzzelli S, Singh D. Association of Incident Pneumonia and Exacerbations with Extrafine Triple Therapy in One Single Inhaler in COPD. Pneumologie 2018. [DOI: 10.1055/s-0037-1619369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- M Scuri
- Chiesi Pharmaceuticals Parma
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- The University of Manchester
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Singh D, Fabbri L, Papi A, Vezzoli S, Muraro A, Petruzzelli S, Scuri M, Vestbo J. Extrafine triple therapy reduces exacerbations in GOLD B COPD patients: post-hoc analysis of TRILOGY and TRINITY. Pneumologie 2018. [DOI: 10.1055/s-0037-1619368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- D Singh
- Centre for Respiratory, Medicine and Allergy,University of Manchester
| | - L Fabbri
- Department of Medical and Surgical Sciences, University of Modena and Reggio Emilia, Modena
| | - A Papi
- Research Centre on Asthma and Copd,University of Ferrara
| | - S Vezzoli
- Global Clinical Development, Chiesi, Farmaceutici Spa, Parma
| | - A Muraro
- Global Clinical Development, Chiesi, Farmaceutici Spa, Parma
| | - S Petruzzelli
- Global Clinical Development, Chiesi, Farmaceutici Spa, Parma
| | - M Scuri
- Global Clinical Development, Chiesi, Farmaceutici Spa, Parma
| | - J Vestbo
- Centre for Respiratory, Medicine and Allergy,University of Manchester
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Scuri M, Spinola M, Vezzoli S, Muraro A, Petruzzelli S, Vestbo J. Efficacy of CHF5993, A Novel Triple Extrafine Combination Treatment in COPD Patients at High Risk of Exacerbations: A Sub Group Analysis of the TRINITY Study. Pneumologie 2018. [DOI: 10.1055/s-0037-1619353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- M Scuri
- Chiesi Pharmaceuticals, Parma
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Scuri M, Vestbo J, Papi A, Corradi M, Spinola M, Montagna I, Francisco C, Cohuet G, Vezzoli S, Muraro A, Petruzzelli S, Vesque D, Singh D. Comparaison de l’incidence des pneumonies et des exacerbations chez des patients BPCO traités par une triple association fixe : analyse post-hoc des études TRILOGY et TRINITY. Rev Mal Respir 2018. [DOI: 10.1016/j.rmr.2017.10.442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Scuri M, Singh D, Papi A, Corradi M, Montagna I, Francisco C, Cohuet G, Vezzoli S, Muraro A, Petruzzelli S, Vesque D, Vestbo J. Tolérance cardiovasculaire de la triple association fixe en particules extra-fines (béclométasone – DPB, formotérol – FF et glycopyrronium – GB – TRIMBOW ® ) dans la BPCO : résultats d’une analyse de tolérance des études TRILOGY et TRINITY. Rev Mal Respir 2018. [DOI: 10.1016/j.rmr.2017.10.441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Prain A, Vezzoli S, Westerberg N, Roger T, Faccio D. Spontaneous Photon Production in Time-Dependent Epsilon-Near-Zero Materials. Phys Rev Lett 2017; 118:133904. [PMID: 28409947 DOI: 10.1103/physrevlett.118.133904] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2016] [Indexed: 06/07/2023]
Abstract
Quantum field theory predicts that a spatially homogeneous but temporally varying medium will excite photon pairs out of the vacuum state. However, this important theoretical prediction lacks experimental verification due to the difficulty in attaining the required nonadiabatic and large amplitude changes in the medium. Recent work has shown that in epsilon-near-zero (ENZ) materials it is possible to optically induce changes of the refractive index of the order of unity, in femtosecond time scales. By studying the quantum field theory of a spatially homogeneous, time-varying ENZ medium, we theoretically predict photon-pair production that is up to several orders of magnitude larger than in non-ENZ time-varying materials. We also find that while in standard materials the emission spectrum depends on the time scale of the perturbation, in ENZ materials the emission is always peaked at the ENZ wavelength. These studies pave the way to technologically feasible observation of photon-pair emission from a time-varying background with implications for quantum field theories beyond condensed matter systems and with potential applications as a new source of entangled light.
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Affiliation(s)
- A Prain
- Institute of Photonics and Quantum Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, EH14 7AS Edinburgh, United Kingdom
| | - S Vezzoli
- Institute of Photonics and Quantum Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, EH14 7AS Edinburgh, United Kingdom
| | - N Westerberg
- Institute of Photonics and Quantum Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, EH14 7AS Edinburgh, United Kingdom
| | - T Roger
- Institute of Photonics and Quantum Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, EH14 7AS Edinburgh, United Kingdom
| | - D Faccio
- Institute of Photonics and Quantum Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, EH14 7AS Edinburgh, United Kingdom
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Singh D, Papi A, Corradi M, Montagna I, Francisco C, Cohuet G, Vezzoli S, Muraro A, Petruzzelli S, Scuri M, Vestbo J, Rellin L. TRILOGY: eine klinische Studie der Phase III zur Beurteilung der Wirksamkeit und Sicherheit einer extrafeinen Dreifach-Fixkombination aus Formoterolfumarat (FF), Glycopyrroniumbromid (GB) und Beclometasondipropionat (BDP) im pMDI (CHF5993) bei Patienten mit COPD. Pneumologie 2017. [DOI: 10.1055/s-0037-1598552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- D Singh
- Centre for Respiratory Medicine and Allergy, University of Manchester
| | - A Papi
- Research Centre on Asthma and Copd, University of Ferrara
| | - M Corradi
- Department of Clinical and Experimental Medicine, University of Parma
| | - I Montagna
- Global Clinical Development, Chiesi Farmaceutici Spa
| | | | - G Cohuet
- Global Clinical Development, Chiesi Sas
| | - S Vezzoli
- Global Clinical Development, Chiesi Farmaceutici Spa
| | - A Muraro
- Global Clinical Development, Chiesi Farmaceutici Spa
| | - S Petruzzelli
- Global Clinical Development, Chiesi Farmaceutici Spa
| | - M Scuri
- Global Clinical Development, Chiesi Farmaceutici Spa
| | - J Vestbo
- Centre for Respiratory Medicine and Allergy, University of Manchester
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Singh D, Corradi M, Montagna I, Cohuet G, Francisco C, Vezzoli S, Muraro A, Petruzzelli S, Scuri M, Vestbo J, Rellin L. TRINITY: eine klinische Vergleichsstudie der Phase III zur Beurteilung der Wirksamkeit und Sicherheit einer extrafeinen Dreifach-Fixkombination aus Formoterolfumarat (FF), Glycopyrroniumbromid (GB) und Beclometasondipropionat (BDP) im pMDI (CHF5993) versus Tiotropiumbromid (Tio) und versus einer freien Dreifach-Wirkstoffkombination aus BDP/FF plus Tio bei Patienten mit COPD. Pneumologie 2017. [DOI: 10.1055/s-0037-1598553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- D Singh
- Centre for Respiratory Medicine and Allergy, University of Manchester
| | - M Corradi
- Department of Clinical and Experimental Medicine, University of Parma
| | - I Montagna
- Global Clinical Development, Chiesi Farmaceutici Spa
| | - G Cohuet
- Global Clinical Development, Chiesi Sas
| | | | - S Vezzoli
- Global Clinical Development, Chiesi Farmaceutici Spa
| | - A Muraro
- Global Clinical Development, Chiesi Farmaceutici Spa
| | - S Petruzzelli
- Global Clinical Development, Chiesi Farmaceutici Spa
| | - M Scuri
- Global Clinical Development, Chiesi Farmaceutici Spa
| | - J Vestbo
- Centre for Respiratory Medicine and Allergy, University of Manchester
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Wedzicha J, Singh D, Vestbo J, Paggiaro P, Jones P, Bonnet Gonod F, Cohuet G, Corradi M, Vezzoli S, Petruzzelli S, Agusti A. Corrigendum to “Extrafine beclomethasone/formoterol in severe COPD patients with history of exacerbations” [Respir Med 108 (2014) 1153–1162]. Respir Med 2015. [DOI: 10.1016/j.rmed.2015.01.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Wedzicha J, Singh D, Vestbo J, Paggiaro P, Jones P, Bonnet-Gonod F, Cohuet G, Corradi M, Vezzoli S, Petruzzelli S, Agusti A. Extrafine beclomethasone/formoterol in severe COPD patients with history of exacerbations. Respir Med 2014; 108:1153-62. [DOI: 10.1016/j.rmed.2014.05.013] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 05/23/2014] [Accepted: 05/24/2014] [Indexed: 10/25/2022]
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Shcherbina OA, Shcherbina GA, Manceau M, Vezzoli S, Carbone L, De Vittorio M, Bramati A, Giacobino E, Chekhova MV, Leuchs G. Photon correlations for colloidal nanocrystals and their clusters. Opt Lett 2014; 39:1791-1794. [PMID: 24686606 DOI: 10.1364/ol.39.001791] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Images of semiconductor "dot-in-rods" and their small clusters are studied by measuring the second-order correlation function with a spatially resolving intensified CCD camera. This measurement allows one to distinguish between a single dot and a cluster and, to a certain extent, to estimate the number of dots in a cluster. A more advanced measurement is proposed, based on higher-order correlations, enabling more accurate determination of the number of dots in a small cluster. Nonclassical features of the light emitted by such a cluster are analyzed.
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Franzetti F, Gori A, Vezzoli S, Rossi C, Degli Esposti A, Bandera A, Nardi G, Rusconi S. Epidemiology of Mycobacterium avium infection in northern Italy. AIDS 1997; 11:1065-6. [PMID: 9223748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Frosi A, Sgorbati C, Bestetti MB, Lodeville D, Vezzoli S, Vezzoli F. Interferon-α and -β in Chronic Hepatitis C: Efficacy and Tolerability. Clin Drug Investig 1995. [DOI: 10.2165/00044011-199509040-00007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Frosi A, Ragni MC, Salvaggio L, Vezzoli S, Vezzoli F. Hepatitis C virus. Lancet 1995; 345:190. [PMID: 7823683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Bozzoni M, Radice L, Frosi A, Vezzoli S, Cuboni A, Vezzoli F. Prevalence of pneumonia due to Legionella pneumophila and Mycoplasma pneumoniae in a population admitted to a department of internal medicine. Respiration 1995; 62:331-5. [PMID: 8552864 DOI: 10.1159/000196475] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
We studied 177 patients with pneumonia admitted to an internal medicine department over a period of 3 years to determine the incidence of two emerging pathogens, Legionella pneumophila and Mycoplasma pneumoniae. Clinical, radiological and laboratory tests were performed and included blood cultures, serology, gram staining and sputum cultures. L. pneumophila was the agent involved in 9 patients (5.1%) and M. pneumoniae in 12 (6.8%). These prevalences were about in the middle of the range of previously published figures. Legionella pneumonia is a rare illness, which even in the absence of suggestive clinical signs must be considered because of its possibly serious course and to allow appropriate therapeutic decisions to be made.
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Affiliation(s)
- M Bozzoni
- USSL 65 Department of Internal Medicine, University of Medicine, Milan, Italy
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Perego R, Vezzoli S, Manfredi W, Bigi G, Procaccia S. Isolation and characterization of circulating immune complexes in patients with rheumatoid arthritis. Boll Ist Sieroter Milan 1983; 62:462-8. [PMID: 6608359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
We studied soluble immune complexes in sera and synovial fluids of ten patients suffering from Rheumatoid Arthritis (RA), six seropositive and four seronegative. Isolation of the immune complexes was obtained by a combination of gel filtration and affinity chromatography from biological fluids. The first step involved preparation of a globulin-enriched fraction by precipitation of either serum or synovial fluid with 5% polyethylene glycol 6000. The precipitate was solubilized in Borate NaCl buffer and fractioned by gel filtration in Ultrogel AcA 34. Eluted peaks were submitted to affinity chromatography on a Protein A-Sepharose CL 4B column. The recovered material was analyzed by double immunodiffusion and electrophoresis in 6-20% polyacrylamide gel containing sodium dodecylsulphate (SDS-PAGE) and was shown to contain IgG, IgM, IgA with small amounts of C1q, C3 and C4. Observation occurred that there is a different distribution of macromolecular and intermediate complexes in seropositive and seronegative samples respectively, total C1q binding activity being equal.
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