A. Vinattieri - Academia.edu (original) (raw)
Papers by A. Vinattieri
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.
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Physical Review B, 2001
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Il Nuovo Cimento D, 1985
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Il Nuovo Cimento D, 1987
ABSTRACT
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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.
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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.
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Conference Record of the 1991 IEEE Nuclear Science Symposium and Medical Imaging Conference
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Lecture Notes in Physics, 2002
ABSTRACT
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physica status solidi (c), 2003
ABSTRACT
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physica status solidi (b), 1988
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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 ...
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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.
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physica status solidi (b), 2000
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physica status solidi (a), 2002
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physica status solidi (a), 2000
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physica status solidi (a), 2000
ABSTRACT Available from http://www3.interscience.wiley.com/cgi- bin/abstract/72507408/START
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physica status solidi (a), 2003
ABSTRACT
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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 ...
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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
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
Physical Review B, 2001
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Il Nuovo Cimento D, 1985
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
Il Nuovo Cimento D, 1987
ABSTRACT
Bookmarks Related papers MentionsView impact
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
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
Conference Record of the 1991 IEEE Nuclear Science Symposium and Medical Imaging Conference
Bookmarks Related papers MentionsView impact
Lecture Notes in Physics, 2002
ABSTRACT
Bookmarks Related papers MentionsView impact
physica status solidi (c), 2003
ABSTRACT
Bookmarks Related papers MentionsView impact
physica status solidi (b), 1988
Bookmarks Related papers MentionsView impact
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
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
physica status solidi (b), 2000
Bookmarks Related papers MentionsView impact
physica status solidi (a), 2002
Bookmarks Related papers MentionsView impact
physica status solidi (a), 2000
Bookmarks Related papers MentionsView impact
physica status solidi (a), 2000
ABSTRACT Available from http://www3.interscience.wiley.com/cgi- bin/abstract/72507408/START
Bookmarks Related papers MentionsView impact
physica status solidi (a), 2003
ABSTRACT
Bookmarks Related papers MentionsView impact
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
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