A5041228257- Photonic and Optical Devices
- Optical Network Technologies
- Material Dynamics and Properties
- Advanced Photonic Communication Systems
- Advanced Fiber Laser Technologies
- Semiconductor Lasers and Optical Devices
- Phase Equilibria and Thermodynamics
- Thermodynamic properties of mixtures
- Photonic Crystals and Applications
- Liquid Crystal Research Advancements
- Ionic liquids properties and applications
- Chemical Thermodynamics and Molecular Structure
- Polymer crystallization and properties
- Edible Oils Quality and Analysis
- Food Chemistry and Fat Analysis
- Advanced oxidation water treatment
- Superconducting Materials and Applications
- Nanomaterials for catalytic reactions
- Muon and positron interactions and applications
- Mesoporous Materials and Catalysis
- Advanced Chemical Sensor Technologies
- Thermal and Kinetic Analysis
- Particle Detector Development and Performance
- Essential Oils and Antimicrobial Activity
- Phase-change materials and chalcogenides
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
2021-2024
Istituto di Scienza e Tecnologie dell'Informazione "Alessandro Faedo"
2013-2024
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati
2021-2022
Joint Institute for Nuclear Research
2021-2022
California Institute of Technology
2021-2022
Istituto Nazionale di Fisica Nucleare, Sezione di Lecce
2021-2022
National Research Council
2010-2021
Fermi National Accelerator Laboratory
2021
Istituto Nazionale di Fisica Nucleare, Sezione di Trieste
2021
Yale University
2021
Abstract A century after the first optical cavity, coupled resonator waveguides (CROWs) were conceived as a new way to guide light on photonic chip. Controlling chains of resonators let propagate through, with reduced speed and enhanced intensity, boosting light‐matter interaction while keeping information undistorted: this was fascinating promise CROWs, but also one most ambitious challenges ever set for integrated optics. The decade history CROWs is discussed in review, from original idea...
We report on the direct observation of backscattering induced by sidewall roughness in high-index-contrast optical waveguides based total internal reflection. Our results demonstrate that is one most severe limiting factors state-of-the art silicon insulator nanowires employed densely integrated photonics. also derive general relationship between and geometrical parameters waveguide. Further, role polarization rotation coupling with higher-order modes pointed out.
Wearable sensors present a new frontier in the development of monitoring techniques. They are great importance sectors such as sport and healthcare they enable physiological signals biological fluids, human sweat, to be continuously monitored. Until recently this could only carried out specialized laboratories using cumbersome often expensive devices. Sweat integrated onto textile substrates not innovative but also represent first attempt use an idea system that will worn directly on body....
Wave mixing inside optical resonators, while experiencing a large enhancement of the nonlinear interaction efficiency, suffers from strong bandwidth constraints, preventing its practical exploitation for processing broad-band signals. Here we show that such limits are overcome by new concept travelling-wave resonant four-wave (FWM). This approach combines efficiency provided propagation with wide-band conversion process. Compared conventional FWM in bare waveguides, it exhibits higher...
This paper presents an analytical investigation of paint reconstructions prepared with linseed oil that have undergone typical 19th century treatments in preparation for painting. The was mechanically extracted from the same seed lot, which then processed by various methods: water washing, heat treatments, and addition driers, without heat. A modern process lead white (Dutch source, Schoonhoven) a commercially available vine black were used as pigments. 1999, naturally aged onwards. We...
Key features of the deep eutectic solvent-microwave assisted simultaneous extraction polyphenols and delignification pretreatment chestnut shell waste are presented.
A reconfigurable coupled-resonator optical waveguide made of a few directly coupled ring resonators is employed to control the delay data streams modulated at tens gigabits per second. 8 bit lengths (1 byte) with small pulse broadening and 1 dB/bit fractional loss achieved by using only eight rings. The limiting role spurious backreflections experimentally investigated. high storage efficiency bit/ring) device enables an easy, reliable, hitless, relatively low-power-consuming management...
A novel reconfigurable architecture based on slow-wave propagation in integrated optical ring resonators is proposed for the realization of variable delay lines.A continuously achieved by combining a coarse discrete (digital) delay, provided coupled resonator structure, with fine continuous (analog) given cascaded ring-resonator phase-shifter.The reflective configuration structure enables simple, accurate and robust tuning provides footprint reduction factor 2 respect to conventional...
Innovative extraction configurations for the biorefining of a biomass waste (citrus peel) were developed in this work.
A coupled-resonator optical waveguide (CROW) consisting of a chain directly coupled ring-resonators (RRs) fabricated in 4.5%-indexcontrast silicon oxynitride technology is employed to control the delay pulses with continuity and over several bit-slots. The moderate deterioration signal quality versus demonstrated by observation error-free transmission (BER < 10(-9)) at 10 Gbit/s for fractional delays up 3 bits, losses below 1 dB per bit-delay. high storage efficiency device, exceeding 0.5...
Coupled-ring resonator-based slow light structures are reported and discussed. By combining the advantages of high index contrast silicon-on-insulator technology with an efficient thermo-optical activation, they provide on-chip solution a bandwidth up to 100 GHz slowdown factor 16, as well continuous reconfiguration scheme fine tunability. The performance these devices is investigated in detail for both static dynamic operation, order evaluate their potential optical signal processing...
The heat capacity Cp of the liquid state water confined to 2nm radius pores in Vycor glass was measured by temperature modulation calorimetry range 253–360K, with an accuracy 0.5%. On nanoconfinement, increases, and broad minimum against T plot shifts higher temperature. increase is attributed phonon configurational contributions. apparent partially frozen scanning 240–280K 2%, both on cooling or heating at 6Kh−1 rate. enthalpy, entropy, free energy nanoconfined have been determined. remains...
The biomass waste obtained at the end-of-pipe of extraction industry can be used as fuel for energy production, aiming cost reduction/waste disposal issues. However, few systematic investigations into calorific value these residues are reported in literature. In this work, thermochemical properties solid from different biomasses (residues citrus peels, leaves, flowers, stems, and poultry feathers extraction) potential fuels have been investigated. heat combustion (ΔcH) (orange, tangerine,...
We present the design and fabrication of compact tunable silicon-on-insulator bandpass filters based on integration a Mach-Zehnder interferometer with ring resonators activated via thermo-optic phase shifters. The proposed architecture provides wide filter bandwidth tunability from 10% to 90% free spectral range preserving off-band rejection. Possible applications are channel subset selection in wavelength division multiplexing optical systems, adaptive filtering signal bandwidth,...
Zeolite Beta, modified with some salts of alkali and alkaline earth metals (K, Zn, Sn), was tested in the hydrothermal heterogeneous catalytic decomposition microcrystalline cellulose. The reactions were microwave-assisted, where microwaves issued by an situ coaxial applicator. Zeolites subjected to ion-exchange process which determines loss crystallinity following order: Sn-Beta-IE > K-Beta Zn-Beta acid form H-Beta. interaction between zeolites studied irradiating zeolite powder under...
Selective exposure to visible light is used permanently trim the resonant wavelengths of coupled ring-resonator filters and delay-lines realized on a chalcogenide As2S3 platform. Post-fabrication manipulation circuit parameters has proved an effective tool compensate for technological tolerances, targeting demanding specifications in photonic integrated circuits with no need always-on power-hungry actuators. The same approach opens way realize that can be reconfigured after fabrication...