A5018793424- Mechanical and Optical Resonators
- Quantum Information and Cryptography
- Quantum optics and atomic interactions
- Photonic and Optical Devices
- Cold Atom Physics and Bose-Einstein Condensates
- Corrosion Behavior and Inhibition
- Organ Donation and Transplantation
- Hydrogen embrittlement and corrosion behaviors in metals
- Quantum and electron transport phenomena
- Concrete Corrosion and Durability
- Non-Destructive Testing Techniques
- Palliative Care and End-of-Life Issues
- Ethics in medical practice
- Strong Light-Matter Interactions
- Health, Nursing, Elderly Care
- Electron and X-Ray Spectroscopy Techniques
- Advanced Electron Microscopy Techniques and Applications
- Material Properties and Failure Mechanisms
- Genetic and Kidney Cyst Diseases
- Infectious Diseases and Tuberculosis
- Molecular Junctions and Nanostructures
- Photonic Crystals and Applications
- Radio Wave Propagation Studies
- Optical Wireless Communication Technologies
- Physical Education and Gymnastics
Ganta United Methodist Hospital
2016-2020
University of Messina
2003-2019
Max Planck Institute for Nuclear Physics
2013-2017
Max Planck Society
2013-2014
Karlsruhe Institute of Technology
2009-2013
University of Turin
2000-2004
Boston Children's Hospital
2002
We present a detailed analysis of the dynamics photon transport in waveguiding systems presence two-level system. In these systems, quantum interference effects generate strong effective optical nonlinearity on few-photon level. clarify relevant physical mechanisms through an appropriate many-body approach. Based this, we demonstrate that single-particle photon-atom bound state with energy outside band can be excited via multi-particle scattering processes. further show trapping are robust...
We analyze the role of quantum interference effects induced by an embedded two-level system on photon transport properties in waveguiding structures that exhibit cutoffs (band edges) their dispersion relation. In particular, we demonstrate these systems invariably single-particle photon-atom bound states and strong effective nonlinear responses few-photon level. Based this, find may be tuned via underlying relation occupation can controlled multiparticle scattering processes. This opens...
We discuss the transport properties of a single photon in one-dimensional waveguide with an embedded three-level atom and utilize both stationary plane-wave solutions time-dependent calculations to investigate interaction driven undriven V- Λ-systems. Specifically, for case V-system, we analyze phenomenon long-time occupation upper atomic levels conjunction almost dark states. For Λ-system, find non-stationary states explain how photon's transmittance can be controlled by initial phase...
The Hong-Ou-Mandel effect is studied in the context of two-photon transport a one-dimensional waveguide with single scatterer. We numerically investigate scattering problem within time-dependent, wave-function-based framework. Depending on realization scatterer and its properties, we calculate joint probability finding both photons either side after scattering. specifically point out how interferometry techniques could be exploited to identify effective photon-photon interactions which are...
Cooperative phenomena arising due to the coupling of individual atoms via radiation field are a cornerstone modern quantum and optical physics. Recent experiments on x-ray optics added new twist this line research by exploiting superradiance in order construct artificial systems. However, so far, systematic approaches deliberately design properties lacking, impeding desired implementation more advanced schemes. Here, we develop an analytical framework for engineering single-photon extended...
We present a theoretical analysis of the spectral features coherent light pulses traveling in one-dimensional waveguide with an embedded two-level quantum system. In particular, we clarify and explain relevant physical mechanisms that lead to rich variety distinct spectrum scattered light. This includes phenomenon discrete steps transmitted intensity as function excitation amplitude, frequency mixing consequence cascaded nonlinear processes, role atom-photon bound states.
We investigate the coupled-system dynamics of two-level quantum dots placed on a vibrating nanomechanical resonator. The ensemble exhibits superradiance features which are transferred to mechanical degrees freedom representing fast and enhanced phonon emission in setup, resembling effect.
Abstract This contribution presents a set of experimental results on fiber-reinforced innovative lightweight panels (FRIL-panels) having thickness 12mm. These are prepared with peculiar foamed concrete that has high viscosity and cohesion in the fresh state, which makes it particularly suitable for 3D printing applications. The FRIL-panels can be used internal partitions, external infills, suspended ceilings buildings as more effective solutions than conventional plasterboard ones, better...
The collective emission from a one-dimensional chain of interacting two-level atoms coupled to common electromagnetic reservoir is investigated. We derive the system's dissipative few-excitation eigenstates, and analyze its static properties, including dipole moments branching ratios between different eigenstates. Next, we study dynamics, characterize light emitted or scattered by such system via far-field observables. Throughout analysis, consider spontaneous an excited state as well two...
The collective emission from a one-dimensional chain of interacting two-level atoms is investigated. We calculate the light scattered by dissipative few-excitation eigenstates in far field, and, particular, focus on signatures lattice two-body bound state. present analytical results for angle-resolved, temporal decay intensity. Moreover, we find that steady-state spectrum emerges when system probed weak, incoherent driving field exhibits distinct signature existence state, and allows us to...
Electron energy-loss spectroscopy (EELS) performed in the scanning transmission electron microscope (STEM) is a powerful technique for probing local electronic structure at high spatial resolution via spectrum imaging (SI) paradigm.For in-situ analysis, capability to capture spectral data both speed and dose efficiency critical.Traditional CCD based detectors used EELS are capable of rates but give inherently low collection due fixed readout dead time.Spectral quality further compromised by...
We discuss a model for single-photon scattering in tight-binding waveguide with an embedded three-level quantum impurity. To this end, we calculate stationary solutions of plane wave states and compare the results non-stationary numerical simulations pulses. Using example driven Λ-three-level system show how investigations can lead to more realistic picture at extremal conditions.