A. Vinattieri - Academia.edu (original) (raw)

Papers by A. Vinattieri

Research paper thumbnail of Hybrid integration of carbon nanotubes into silicon slot photonic structures

Silicon Photonics XI, 2016

Silicon photonics, due to its compatibility with the CMOS platform and unprecedented integration ... more Silicon photonics, due to its compatibility with the CMOS platform and unprecedented integration capability, has become the preferred solution for the implementation of next generation optical interconnects. However, current Si photonics require on-chip integration of several materials, including III-V for lasing, doped silicon for modulation and Ge for detection. The very different requirements of these materials result in complex fabrication processes that offset the cost-effectiveness of the Si photonics approach. We are developing an alternative route towards the integration of optoelectronic devices in Si photonic, relying on the use of single wall carbon nanotubes (SWNTs). SWNTs can be considered as a Si compatible material able to emit, modulate and detect near-infrared light. Hence, they hold a unique potential to implement all active devices in the Si photonics platform. In addition, solution processed SWNTs can be integrated on Si using spin-coating techniques, obviating the need of complex epitaxial growth or chip bonding approaches. Here, we report on our recent progress in the coupling of SWNTs light emission into optical resonators implemented on the silicon-on-insulator (SOI) platform.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Mesoscopic-capacitor effect inGaN/AlxGa1−xNquantum wells: Effects on the electronic states

Physical Review B, 2001

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Raman scattering by hot polaritons in NaClO3

Il Nuovo Cimento D, 1985

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Semiconductors II: Surfaces, interfaces, microstructures, and related topics-Recombination kinetics of InAs quantum dots: Role of thermalization in dark states

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Time-resolved luminescence of ZnIn2S4 at low temperature

Il Nuovo Cimento D, 1987

ABSTRACT

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Carrier recombination kinetics in (311)A InGaAs sidewall quantum wires

Physica E-Low-Dimensional Systems & Nanostructures, 2004

We present a study of the optical properties and carrier dynamics in strained InGaAs sidewall qua... more We present a study of the optical properties and carrier dynamics in strained InGaAs sidewall quantum wires (QWR) on patterned GaAs (311)A substrates by means of picosecond time-resolved photoluminescence (PL). A pronounced dynamical red shift of the QWR-PL band when increasing the delay time after the pulse excitation is observed. In addition, time-resolved data show a significant shortening of the PL decay time from the wire at short delay and when high excitation power is used. The data are compared with theoretical predictions. The results, i.e. the dynamical red shift observed in the wire emission and the shortening of the PL decay with increasing the excitation density, are interpreted in terms of a dynamical screening effect of the piezoelectric field.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Exciton relaxation and recombination dynamics in quantum well structures

SPIE Proceedings, 1994

We show that a lineshape analysis of the photoluminescence spectra of GaAs/AlGaAs quantum wells c... more We show that a lineshape analysis of the photoluminescence spectra of GaAs/AlGaAs quantum wells can provide valuable information on the processes ruling the exciton recombination. In particular the relevance of resonant Rayleigh scattering in the case of resonant excitation at various lattice temperatures and the validity of the thermalization hypothesis under different experimental conditions have been investigated.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of GaAs solid state detectors for physics at the LHC

Conference Record of the 1991 IEEE Nuclear Science Symposium and Medical Imaging Conference

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Scanning Near-Field Optical Spectroscopy of Quantum-Confined Semiconductor Nanostructures

Lecture Notes in Physics, 2002

ABSTRACT

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Piezoelectric effects in sidewall quantum wires grown on patterned (311)A GaAs substrate

physica status solidi (c), 2003

ABSTRACT

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Temperature Dependence of the Photoluminescence in GaAsGaAlAs Multiple Quantum Well Structure

physica status solidi (b), 1988

Bookmarks Related papers MentionsView impact

Research paper thumbnail of From evidence of strong light–matter coupling to polariton emission in GaN microcavities

physica status solidi (b), 2007

... IR Sellers *, **, 1 , F. Semond 1 , M. Zamfirescu 2, 4 , F. Stokker-Cheregi 2 , P. Disseix 3 ... more ... IR Sellers *, **, 1 , F. Semond 1 , M. Zamfirescu 2, 4 , F. Stokker-Cheregi 2 , P. Disseix 3 , ... Gregory, Parc Sophia Antipolis, 06560 Valbonne, France 2 LENS, Dipartimento di Fisica, Universita di Firenze, 50019 Sesto Fiorentino, Italy 3 LASMEA, Université Blaise Pascal, Clermont ...

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Vertical Coupling Effects in Arrays of InAs Quantum Dots

physica status solidi (b), 2001

ABSTRACT We show that either a blueshift or a redshift of the fundamental transition energy can b... more ABSTRACT We show that either a blueshift or a redshift of the fundamental transition energy can be observed in vertical arrays of InAs/GaAs quantum dots. Depending on the spacer thicknesses, and explained by including strain, indium segregation, and Coulomb effects.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Coherent Emission Pattern of a Semiconductor Microcavity

physica status solidi (b), 2000

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Steady-State and Time-Resolved Near-Field Optical Spectroscopy of GaN/AlN Quantum Dots and InGaN/GaN Quantum Wells

physica status solidi (a), 2002

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Free-Exciton Photoluminescence as a Probe of CVD Diamond

physica status solidi (a), 2000

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Nonlinear Effects in the Resonant Rayleigh Scattering from Quantum Well Structures

physica status solidi (a), 2000

ABSTRACT Available from http://www3.interscience.wiley.com/cgi- bin/abstract/72507408/START

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Exciton dynamics in InGaAsN/GaAs heterostructures

physica status solidi (a), 2003

ABSTRACT

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Sub-wavelength probing and modification of photonic crystal nano-cavities

Photonics and Nanostructures - Fundamentals and Applications, 2010

In this work we present a sizeable and reversible spectral tuning of the resonances of a two-dime... more In this work we present a sizeable and reversible spectral tuning of the resonances of a two-dimensional photonic crystal nano-cavity by exploiting the introduction of a sub-wavelength size glass tip. The comparison between experimental near-field data and results of numerical ...

Bookmarks Related papers MentionsView impact

Research paper thumbnail of CVD diamond optics for ultraviolet

Diamond and Related Materials, 2001

The optical properties of CVD polycrystalline diamond have been studied in order to evaluate the ... more The optical properties of CVD polycrystalline diamond have been studied in order to evaluate the feasibility of diamond mirrors operating in the UV spectral region. Diamond is a very attractive material for space application, since it offers a unique combination of high UV reflectivity, low reflectivity and high transmittance in the visible, mechanical hardness and chemical inertness. In addition, diamond

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Hybrid integration of carbon nanotubes into silicon slot photonic structures

Silicon Photonics XI, 2016

Silicon photonics, due to its compatibility with the CMOS platform and unprecedented integration ... more Silicon photonics, due to its compatibility with the CMOS platform and unprecedented integration capability, has become the preferred solution for the implementation of next generation optical interconnects. However, current Si photonics require on-chip integration of several materials, including III-V for lasing, doped silicon for modulation and Ge for detection. The very different requirements of these materials result in complex fabrication processes that offset the cost-effectiveness of the Si photonics approach. We are developing an alternative route towards the integration of optoelectronic devices in Si photonic, relying on the use of single wall carbon nanotubes (SWNTs). SWNTs can be considered as a Si compatible material able to emit, modulate and detect near-infrared light. Hence, they hold a unique potential to implement all active devices in the Si photonics platform. In addition, solution processed SWNTs can be integrated on Si using spin-coating techniques, obviating the need of complex epitaxial growth or chip bonding approaches. Here, we report on our recent progress in the coupling of SWNTs light emission into optical resonators implemented on the silicon-on-insulator (SOI) platform.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Mesoscopic-capacitor effect inGaN/AlxGa1−xNquantum wells: Effects on the electronic states

Physical Review B, 2001

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Raman scattering by hot polaritons in NaClO3

Il Nuovo Cimento D, 1985

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Semiconductors II: Surfaces, interfaces, microstructures, and related topics-Recombination kinetics of InAs quantum dots: Role of thermalization in dark states

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Time-resolved luminescence of ZnIn2S4 at low temperature

Il Nuovo Cimento D, 1987

ABSTRACT

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Carrier recombination kinetics in (311)A InGaAs sidewall quantum wires

Physica E-Low-Dimensional Systems & Nanostructures, 2004

We present a study of the optical properties and carrier dynamics in strained InGaAs sidewall qua... more We present a study of the optical properties and carrier dynamics in strained InGaAs sidewall quantum wires (QWR) on patterned GaAs (311)A substrates by means of picosecond time-resolved photoluminescence (PL). A pronounced dynamical red shift of the QWR-PL band when increasing the delay time after the pulse excitation is observed. In addition, time-resolved data show a significant shortening of the PL decay time from the wire at short delay and when high excitation power is used. The data are compared with theoretical predictions. The results, i.e. the dynamical red shift observed in the wire emission and the shortening of the PL decay with increasing the excitation density, are interpreted in terms of a dynamical screening effect of the piezoelectric field.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Exciton relaxation and recombination dynamics in quantum well structures

SPIE Proceedings, 1994

We show that a lineshape analysis of the photoluminescence spectra of GaAs/AlGaAs quantum wells c... more We show that a lineshape analysis of the photoluminescence spectra of GaAs/AlGaAs quantum wells can provide valuable information on the processes ruling the exciton recombination. In particular the relevance of resonant Rayleigh scattering in the case of resonant excitation at various lattice temperatures and the validity of the thermalization hypothesis under different experimental conditions have been investigated.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of GaAs solid state detectors for physics at the LHC

Conference Record of the 1991 IEEE Nuclear Science Symposium and Medical Imaging Conference

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Scanning Near-Field Optical Spectroscopy of Quantum-Confined Semiconductor Nanostructures

Lecture Notes in Physics, 2002

ABSTRACT

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Piezoelectric effects in sidewall quantum wires grown on patterned (311)A GaAs substrate

physica status solidi (c), 2003

ABSTRACT

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Temperature Dependence of the Photoluminescence in GaAsGaAlAs Multiple Quantum Well Structure

physica status solidi (b), 1988

Bookmarks Related papers MentionsView impact

Research paper thumbnail of From evidence of strong light–matter coupling to polariton emission in GaN microcavities

physica status solidi (b), 2007

... IR Sellers *, **, 1 , F. Semond 1 , M. Zamfirescu 2, 4 , F. Stokker-Cheregi 2 , P. Disseix 3 ... more ... IR Sellers *, **, 1 , F. Semond 1 , M. Zamfirescu 2, 4 , F. Stokker-Cheregi 2 , P. Disseix 3 , ... Gregory, Parc Sophia Antipolis, 06560 Valbonne, France 2 LENS, Dipartimento di Fisica, Universita di Firenze, 50019 Sesto Fiorentino, Italy 3 LASMEA, Université Blaise Pascal, Clermont ...

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Vertical Coupling Effects in Arrays of InAs Quantum Dots

physica status solidi (b), 2001

ABSTRACT We show that either a blueshift or a redshift of the fundamental transition energy can b... more ABSTRACT We show that either a blueshift or a redshift of the fundamental transition energy can be observed in vertical arrays of InAs/GaAs quantum dots. Depending on the spacer thicknesses, and explained by including strain, indium segregation, and Coulomb effects.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Coherent Emission Pattern of a Semiconductor Microcavity

physica status solidi (b), 2000

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Steady-State and Time-Resolved Near-Field Optical Spectroscopy of GaN/AlN Quantum Dots and InGaN/GaN Quantum Wells

physica status solidi (a), 2002

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Free-Exciton Photoluminescence as a Probe of CVD Diamond

physica status solidi (a), 2000

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Nonlinear Effects in the Resonant Rayleigh Scattering from Quantum Well Structures

physica status solidi (a), 2000

ABSTRACT Available from http://www3.interscience.wiley.com/cgi- bin/abstract/72507408/START

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Exciton dynamics in InGaAsN/GaAs heterostructures

physica status solidi (a), 2003

ABSTRACT

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Sub-wavelength probing and modification of photonic crystal nano-cavities

Photonics and Nanostructures - Fundamentals and Applications, 2010

In this work we present a sizeable and reversible spectral tuning of the resonances of a two-dime... more In this work we present a sizeable and reversible spectral tuning of the resonances of a two-dimensional photonic crystal nano-cavity by exploiting the introduction of a sub-wavelength size glass tip. The comparison between experimental near-field data and results of numerical ...

Bookmarks Related papers MentionsView impact

Research paper thumbnail of CVD diamond optics for ultraviolet

Diamond and Related Materials, 2001

The optical properties of CVD polycrystalline diamond have been studied in order to evaluate the ... more The optical properties of CVD polycrystalline diamond have been studied in order to evaluate the feasibility of diamond mirrors operating in the UV spectral region. Diamond is a very attractive material for space application, since it offers a unique combination of high UV reflectivity, low reflectivity and high transmittance in the visible, mechanical hardness and chemical inertness. In addition, diamond

Bookmarks Related papers MentionsView impact