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High-speed flow of interacting organic polaritons

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Light(Science & Applications) 2016年第1期5卷 235-240页

作者： Giovanni Lerario Dario Ballarini Antonio Fieramosca Alessandro Cannavale Armando Genco Federica Mangione Salvatore Gambino Lorenzo Dominici Milena De Giorgi Giuseppe Gigli daniele sanvitto CNR NANOTEC-Istituto di Nanotecnologia Via Monteroni73100 LecceItaly Dipartimento di matematica e fisica‘Ennio De Giorgi’ Universitàdel Salento73100 LecceItaly

The strong coupling of an excitonic transition with an electromagnetic mode results in composite quasi-particles called exciton polaritons,which have been shown to combine the best properties of their individual components in semiconductor ***,the physics and applications of polariton flows in organic materials and at room temperature are still unexplored because of the poor photon confinement in such ***,we demonstrate that polaritons formed by the hybridization of organic excitons with a Bloch surface wave are able to propagate for hundreds of microns showing remarkable third-order nonlinear interactions upon high injection *** findings pave the way for the study of organic nonlinear light–matter fluxes and for a technologically promising route of the realization of dissipation-less on-chip polariton devices operating at room temperature.

关键词： optical nonlinearity organic materials polaritons surface waves 2D optics

Speckle spatial correlations aiding optical transmission matrix retrieval:the smoothed Gerchberg–Saxton single-iteration algorithm

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Photonics Research 2022年第10期10卷 2349-2358页

作者： daniele ANCORA LORENZO DOMINICI ANTONIO GIANFRATE PAOLO CAZZATO MILENA DE GIORGI DARIO BALLARINI daniele sanvitto LUCA LEUZZI Department of Physics Universitàdi Roma la SapienzaPiazzale Aldo Moro 5I-00185 RomeItaly Institute of Nanotechnology Consiglio Nazionale delle Ricerche(CNR-NANOTEC)Via MonteroniI-73100 LecceItaly Institute of Nanotechnology Soft and Living Matter LaboratoryConsiglio Nazionale delle Ricerche(CNR-NANOTEC)Piazzale Aldo Moro 5I-00185 RomeItaly

The estimation of the transmission matrix of a disordered medium is a challenging problem in disordered ***,its reconstruction relies on a complex inversion that aims at connecting a fully controlled input to the deterministic interference of the light field scrambled by the *** the moment,iterative phase retrieval protocols provide the fastest reconstructing frameworks,converging in a few tens of *** the knowledge of speckle correlations,we construct a new phase retrieval algorithm that reduces the computational cost to a single *** being faster,our method is practical because it accepts fewer measurements than state-of-the-art *** to reducing computation time by one order of magnitude,our result can be a step forward toward real-time optical imaging that exploits disordered devices.

关键词： optical matrix algorithm

Strong light-matter coupling in van der Waals materials

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Light(Science & Applications) 2024年第10期13卷 2009-2026页

作者： Yuan Luo Jiaxin Zhao Antonio Fieramosca Quanbing Guo Haifeng Kang Xiaoze Liu Timothy C.H.Liew daniele sanvitto Zhiyuan An Sanjib Ghosh Ziyu Wang Hongxing Xu Qihua Xiong state Key Laboratory of Low-Dimensional Quantum Physics Department of PhysicsTsinghua UniversityBejing 100084China Division of Physics and Applied Physics School of Physical and Mathematical SciencesNanyang Technological UniversitySingaporeSingapore CNR NANOTEC Institute of Nanotechnology via MonteroniLecce 73100Italy Wuhan Institute of Quantum Technology Wuhan 430206China school of Physics and Technology Center for Nanoscience and Nanotechnologyand Key Laboratory of Artificial Micro-and Nano-structures of Ministry of EducationWuhan UniversityWuhan 430072China iNFN National institute of Nuclear Physics Lecce 73100Italy Beijing Academy of Quantum Information Sciences Bejing 100193China The Institute of Technological Sciences Wuhan UniversityWuhan 430072China Frontier Science Center for Quantum Information Beijing 100084China Collaborative Innovation Center of Quantum Matter BeijingChina

In recent years,two-dimensional(2D)van der Waals materials have emerged as a focal point in materials research,drawing increasing attention due to their potential for isolating and synergistically combining diverse atomic *** thin transition metal dichalcogenides(TMDs)are one of the most alluring van der Waals materials owing to their exceptional electronic and optical *** tightly bound excitons with giant oscillator strength render TMDs an ideal platform to investigate strong light-matter coupling when they are integrated with optical cavities,providing a wide range of possibilities for exploring novel polaritonic physics and *** this review,we focused on recent advances in TMD-based strong light-matter *** the foremost position,we discuss the various optical structures strongly coupled to TMD materials,such as Fabry-Perot cavities,photonic crystals,and plasmonic *** then present several intriguing properties and relevant device applications of TMD *** the end,we delineate promising future directions for the study of strong light-matter coupling in van der Waals materials.

关键词： coupling light render

Quantum hydrodynamics of a single particle

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Light(Science & Applications) 2020年第1期9卷 1199-1205页

作者： Daniel Gustavo Suarez-Forero Vincenzo Ardizzone Saimon Filipe Covre da Silva Marcus Reindl Antonio Fieramosca Laura Polimeno Milena De Giorgi Lorenzo Dominici Loren N.Pfeiffer Giuseppe Gigli Dario Ballarini Fabrice Laussy Armando Rastelli daniele sanvitto CNR NANOTEC Institute of NanotechnologyCampus EcotekneVia Monteroni73100 LecceItaly Dipartimento di Ingegneria dell’Innovazione Universita del SalentoCampus Ecoteknevia Monteroni73100 LecceItaly Institute of Semiconductor and Solid State Physics Johannes Kepler UniversityAltenbergerstr.69Linz 4040Austria Dipartimento di Matematica e Fisica E.De Giorgi Universita del SalentoCampus Ecoteknevia MonteroniLecce 73100Italy PRISM Princeton Institute for the Science and Technology of MaterialsPrinceton UniversityPrincetonNJ 08540USA Faculty of Science and Engineering University of WolverhamptonWulfruna StreetWolverhampton WV11LYUK Russian Quantum Center Novaya 100143025 SkolkovoMoscow RegionRussia

Semiconductor devices are strong competitors in the race for the development of quantum computational *** this work,we interface two semiconductor building blocks of different dimensionalities with complementary properties:(1)a quantum dot hosting a single exciton and acting as a nearly ideal single-photon emitter and(2)a quantum well in a 2D microcavity sustaining polaritons,which are known for their strong interactions and unique hydrodynamic properties,including ultrafast real-time monitoring of their propagation and phase *** the present experiment,we can thus observe how the injected single particles propagate and evolve inside the microcavity,giving rise to hydrodynamic features typical of macroscopic systems despite their genuine intrinsic quantum *** the presence of a structural defect,we observe the celebrated quantum interference of a single particle that produces fringes reminiscent of wave *** this behavior could be theoretically expected,our imaging of such an interference pattern,together with a measurement of antibunching,constitutes the first demonstration of spatial mapping of the self-interference of a single quantum particle impinging on an obstacle.

关键词： quantum particle hydrodynamic

Polarization shaping of Poincare´ beams by polariton oscillations

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Light(Science & Applications) 2015年第1期4卷 122-128页

作者： David Colas Lorenzo Dominici Stefano Donati Anastasiia A Pervishko Timothy CH Liew Ivan A Shelykh Dario Ballarini Milena de Giorgi Alberto Bramati Giuseppe Gigli Elena del Valle Fabrice P Laussy Alexey V Kavokin daniele sanvitto Departamento de Fı´sica Teorica de la Materia Condensada and Condensed Matter Physics Center(IFIMAC) Universidad Autonoma de MadridE-28049Spain NANOTEC Istituto di Nanotecnologia-CNRVia Arnesano73100 LecceItaly Istituto Italiano di Tecnologia IIT-LecceVia Barsanti73010 LecceItaly Universita del Salento Via Arnesano73100 LecceItaly Division of Physics and Applied Physics Nanyang Technological University637371 SingaporeSingapore Science Institute University of IcelandDunhagi 3IS-107ReykjavikIceland Laboratory of Light-Matter Coupling in Nanostructures ITMO University197101 St.PetersburgRussia Laboratoire Kastler Brossel UPMC-Paris 6ENS et CNRS75005 ParisFrance Russian Quantum Center Novaya 100143025 SkolkovoMoscow RegionRussia CNR-SPIN Tor Vergataviale del Politechnico 1I-00133 RomeItaly

We propose theoretically and demonstrate experimentally the generation of light pulses whose polarization varies temporally to cover selected areas of the Poincare´sphere with both tunable swirling speed and total duration(1 ps and 10 ps,respectively,in our implementation).The effect relies on the Rabi oscillations of two polariton polarized fields excited by two counter-polarized and delayed *** superposition of the oscillating fields result in the precession of the Stokes vector of the emitted light while polariton lifetime imbalance results in its drift from a circle of controllable radius on the Poincare´sphere to a single point at long *** positioning of the initial circle and final point allows to engineer the type of polarization spanning,including a full sweeping of the Poincare´*** universality and simplicity of the scheme should allow for the deployment of time-varying full-Poincare´polarization fields in a variety of platforms,timescales,and regimes.

关键词： full Poincare beams polaritons polarization pulse shaping Rabi oscillations

Microcavity exciton polaritons at room temperature

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Photonics Insights 2022年第1期1卷 60-103页

作者： Sanjib Ghosh Rui Su Jiaxin Zhao Antonio Fieramosca Jinqi Wu Tengfei Li Qing Zhang Feng Li Zhanghai Chen Timothy Liew daniele sanvitto Qihua Xiong Beijing Academy of Quantum Information Sciences BeijingChina Division of Physics and Applied Physics School of Physical and Mathematical SciencesNanyang Technological UniversitySingaporeSingapore School of Materials Science and Engineering Peking UniversityBeijingChina Research Center for Wide Gap Semiconductor Peking UniversityBeijingChina Key Laboratory for Physical Electronics and Devices of the Ministry of Education&Shaanxi Key Laboratory of Information Photonic Technique School of Electronic Science and EngineeringFaculty of Electronic and Information EngineeringXi’an Jiaotong UniversityXi’anChina Department of Physics College of Physical Science and TechnologyXiamen UniversityXiamenChina CNR NANOTEC Campus EcotekneLecceItaly State Key Laboratory of Low-Dimensional Quantum Physics and Department of Physics Tsinghua UniversityBeijingChina Frontier Science Center for Quantum Information BeijingChina Beijing Innovation Center for Future Chips Tsinghua UniversityBeijingChina

The quest for realizing novel fundamental physical effects and practical applications in ambient conditions has led to tremendous interest in microcavity exciton polaritons working in the strong coupling regime at room *** the past few decades,a wide range of novel semiconductor systems supporting robust exciton polaritons have emerged,which has led to the realization of various fascinating phenomena and practical *** paper aims to review recent theoretical and experimental developments of exciton polaritons operating at room temperature,and includes a comprehensive theoretical background,descriptions of intriguing phenomena observed in various physical systems,as well as accounts of optoelectronic ***,an in-depth review of physical systems achieving room temperature exciton polaritons will be presented,including the early development of ZnO and GaN microcavities and other emerging systems such as organics,halide perovskite semiconductors,carbon nanotubes,and transition metal ***,a perspective of outlooking future developments will be elaborated.

关键词： microcavity exciton polariton Bose-Einstein condensation exciton binding energy quantum simulation nonequilibrium dynamics

Genetic signatures of ERCC1 and ERCC2 expression,along with SNPs variants,unveil favorable prognosis in SCLC patients undergoing platinum-based chemotherapy

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Oncology Research 2025年第1期33卷 45-55页

作者： ENRICO CALIMAN SARA FANCELLI FEDERICO SCOLARI ADRIANO PASQUI CLARA MANNESCHI daniele LAVACCHI FRANCESCA MAZZONI FRANCESCA GENSINI VALERIA PASINI CAMILLA EVA COMIN LUCA VOLTOLINI SERENA PILLOZZI LORENZO ANTONUZZO Clinical Oncology Unit Careggi University HospitalFlorence50134Italy Department of Experimental and Clinical Medicine University of FlorenceFlorence50134Italy Department of Health Sciences University of FlorenceFlorence50134Italy Medical Oncology Unit Careggi University HospitalFlorence50134Italy Department of Experimental and Clinical Biomedical Sciences“Mario Serio” University of FlorenceFlorence50134Italy Section of Anatomic Pathology Department of Health SciencesUniversity of FlorenceFlorence50139Italy Section of Surgery Histopathology and Molecular PathologyUniversity of FlorenceFlorence50139Italy Thoracic Surgery Unit Careggi University HospitalFlorence50134Italy

Background:Platinum chemotherapy(CT)remains the backbone of systemic therapy for patients with smallcell lung cancer(SCLC).The nucleotide excision repair(NER)pathway plays a central role in the repair of the DNA damage exerted by platinum *** in this repair mechanism may affect patients’*** and Methods:We conducted a retrospective analysis of data from 38 patients with extensive disease(ED)-SCLC who underwent platinum-CT at the Clinical Oncology Unit,Careggi University Hospital,Florence(Italy),from 2015 to *** expression analysis and single nucleotide polymorphism(SNP)characterization of three NER pathway genes—namely ERCC1,ERCC2,and ERCC5—were performed on patient tumor ***:Overall,elevated expression of ERCC genes was observed in SCLC patients compared to healthy *** with low ERCC1 and ERCC5 expression levels exhibited a better median progression-free survival(mPFS=7.1 vs.4.9 months,p=0.39 for ERCC1 and mPFS=6.9 vs.4.8 months,p=0.093 for ERCC5)and overall survival(mOS=8.7 vs.6.0 months,p=0.4 for ERCC1 and mOS=7.2 vs.6.2 months,p=0.13 for ERCC5).Genotyping analysis of five SNPs of ERCC genes showed a longer survival in patients harboring the wild-type genotype or the heterozygous variant of the ERCC1 rs11615 SNP(p=0.24 for PFS and p=0.14 for OS)and of the rs13181 and rs1799793 ERCC2 SNPs(p=0.43 and p=0.26 for PFS and p=0.21 and p=0.16 for OS,respectively)compared to patients with homozygous mutant ***:The comprehensive analysis of ERCC gene expression and SNP variants appears to identify patients who derive greater survival benefits from platinum-CT.

关键词： Small cell lung cancer(SCLC) Nucleotide excision repair(NER)pathway ERCC genes Single nucleotide polymorphisms(SNPs) Platinumchemotherapy(CT)

On the Proper Homotopy Invariance of the Tucker Property

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Acta Mathematica Sinica,English Series 2007年第3期23卷 571-576页

作者： daniele Ettore OTERA Universitádi Palermo Dipartimento di Matematica ed Applicazionivia Archirafi 3490123-PalermoItaly and Université Paris-SudMathématiquesBt 42591405 Orsay Cedex-France

A non-compact polyhedron P is Tucker if, for any compact subset K begong to P, the fundamental group π1 （P - K） is finitely generated. The main result of this note is that a manifold which is proper homotopy equivalent to a Tucker polyhedron is Tucker. We use Poenaru＇s theory of the equivalence relations forced by the singularities of a non-degenerate simplicial map.

关键词： proper homotopy Φ/ψ-theory tucker property

A recursive implementation of the ALIENOR optimization method

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International Journal of Intelligent Computing and Cybernetics 2021年第2期14卷 81-103页

作者： daniele Peri National Research Council(CNR) Istituto per le Applicazioni del Calcolo“Mauro Picone”–IACRomaItaly

Purpose-A recursive scheme for the ALIENOR method is proposed as a remedy for the difficulties induced by the method.A progressive focusing on the most promising region,in combination with a variation of the density of the alpha-dense curve,is ***/methodology/approach-ALIENOR method is aimed at reducing the space dimensions of an optimization problem by spanning it by using a single alpha-dense curve:the curvilinear abscissa along the curve becomes the only design parameter for any design *** a counterpart,the transformation of the objective function in the projected space is much more difficult to ***-A fine tuning of the procedure has been performed in order to identity the correct balance between the different elements of the *** proposed approach has been tested by using a set of algebraic functions with up to 1,024 design variables,demonstrating the ability of the method in solving large scale optimization *** an industrial application is ***/value-In the knowledge of the author there is not a similar paper in the current literature.

关键词： ALIENOR optimization Global optimization Lipschitzian optimization Reduced order base