Branding/Logomark minus arrow-point-to-down Citation Combined Shape Icon/Bookmark-empty Icon/Copy Icon/Collection Icon/Close Copy 7 Icon/List no author result Created with Sketch.
Loading Scinapse...
Francisco Silva
University of Porto
76Publications
20H-index
1,120Citations
Publications 76
Newest
2019 in Optics LettersIF: 3.59
Miguel Miranda14
Estimated H-index: 14
(Lund University),
Francisco Silva20
Estimated H-index: 20
+ 10 AuthorsPaulo T. Guerreiro6
Estimated H-index: 6
We demonstrate the complete temporal characterization of the optical waveform of visible near-infrared octave-spanning ultrashort laser pulses, using an all-optical, all-solid-state, and fully inline dispersion-scan device based only on second-harmonic generation.
Source Cite
2018 in Scientific ReportsIF: 4.12
E. Conejero Jarque3
Estimated H-index: 3
(University of Salamanca),
J. San Román9
Estimated H-index: 9
(University of Salamanca)
+ 6 AuthorsHelder Crespo12
Estimated H-index: 12
(University of Porto)
Gas-filled hollow-core fiber (HCF) pulse post-compressors generating few- to single-cycle pulses are a key enabling tool for attosecond science and ultrafast spectroscopy. Achieving optimum performance in this regime can be extremely challenging due to the ultra-broad bandwidth of the pulses and the need of an adequate temporal diagnostic. These difficulties have hindered the full exploitation of HCF post-compressors, namely the generation of stable and high-quality near-Fourier-transform-limite...
2 Citations Download PDF Cite
2018 in Optics LettersIF: 3.59
Francisco Silva20
Estimated H-index: 20
(University of Porto),
Benjamín Alonso10
Estimated H-index: 10
(University of Salamanca)
+ 7 AuthorsÍñigo J. Sola12
Estimated H-index: 12
(University of Salamanca)
Intense few- and single-cycle pulses are powerful tools in different fields of science Today, third- and higher-order terms in the remnant spectral phase of the pulses remain a major obstacle for obtaining high-quality few- and single-cycle pulses from in-line post-compression setups. In this Letter, we show how input pulse shaping can successfully be applied to standard post-compression setups to minimize the occurrence of high-order phase components during nonlinear propagation and to directly...
4 Citations Source Cite
2018 in Nature CommunicationsIF: 12.35
Matthias Baudisch12
Estimated H-index: 12
,
Andrea Marini8
Estimated H-index: 8
(University of L'Aquila)
+ 8 AuthorsF. Javier García de Abajo42
Estimated H-index: 42
The speed of solid-state electronic devices, determined by the temporal dynamics of charge carriers, could potentially reach unprecedented petahertz frequencies through direct manipulation by optical fields, consisting in a million-fold increase from state-of-the-art technology. In graphene, charge carrier manipulation is facilitated by exceptionally strong coupling to optical fields, from which stems an important back-action of photoexcited carriers. Here we investigate the instantaneous respon...
6 Citations Download PDF Cite
2018 in NatureIF: 41.58
Matthias Baudisch12
Estimated H-index: 12
,
Andrea Carlo Marini69
Estimated H-index: 69
+ 8 AuthorsTony Zhu2
Estimated H-index: 2
Source
Matthias Baudisch12
Estimated H-index: 12
,
Andrea Carlo Marini69
Estimated H-index: 69
+ 8 AuthorsF. Javier García de Abajo42
Estimated H-index: 42
The temporal dynamics of charge carriers determines the speed with which electronics can be realized in condensed matter, and their direct manipulation with optical fields promises electronic processing at unprecedented petahertz frequencies, consisting in a million-fold increase from state of the art technology. Graphene is of particular interest for the implementation of petahertz optoelectronics due to its unique transport properties, such as high carrier mobility with near-ballistic transpor...
1 Citations Download PDF
2017
Francisco Silva20
Estimated H-index: 20
(University of Porto),
Íñigo J. Sola12
Estimated H-index: 12
(University of Salamanca)
+ 6 AuthorsCrina Cojocaru16
Estimated H-index: 16
(Polytechnic University of Catalonia)
The precise characterization of femtosecond laser pulses is as challenging as their generation and a topic of intense research. Dispersion-scan (d-scan) [1] is a recently established technique where the spectrum of a nonlinear signal, e.g., second-harmonic generation (SHG), is measured as a function of dispersion applied to the pulse. The spectral phase of the pulse can then be retrieved from the resulting 2D trace using an iterative algorithm. An important implementation of d-scan, based on a c...
Source Cite
2017
J.A. San Román1
Estimated H-index: 1
(Grupo México),
E. Conejero Jarque (Grupo México)+ 5 AuthorsHelder Crespo12
Estimated H-index: 12
(University of Porto)
Intense few-to single-cycle pulses are a key tool for attosecond science and ultrafast spectroscopy, and are also enabling a new generation of compact laser-plasma accelerators [1], Achieving such short pulse durations is a challenging task as it requires not only the generation of very broad (potentially over octave-spanning) spectra but also the compensation of the spectral phase over such bandwidths, in order to get pulses as close as possible to their Fourier-transform limit. Presently, the ...
Source Cite
2017
Miguel Canhota1
Estimated H-index: 1
(University of Porto),
Francisco Silva20
Estimated H-index: 20
(University of Porto)
+ 1 AuthorsHelder Crespo12
Estimated H-index: 12
(University of Porto)
Intense single-cycle light pulses are very important tools for attosecond science and high-field physics, and are now enabling a new generation of compact kHz laser-plasma accelerators [1]. These pulses can be generated using several post-compression techniques [2-4] and their precise temporal characterization is crucial for optimizing the compression and for establishing the pulse profile and duration in an experiment. However, the over octave-spanning spectra and extremely short duration of th...
Source Cite
2017 in Physical Review AIF: 2.91
W. Holgado3
Estimated H-index: 3
,
Carlos Hernández-García13
Estimated H-index: 13
+ 7 AuthorsÍñigo J. Sola12
Estimated H-index: 12
In this work we study the impact of chromatic focusing of few-cycle laser pulses on high-order-harmonic generation (HHG) through analysis of the emitted extreme ultraviolet (XUV) radiation. Chromatic focusing is usually avoided in the few-cycle regime, as the pulse spatiotemporal structure may be highly distorted by the spatiotemporal aberrations. Here, however, we demonstrate it as an additional control parameter to modify the generated XUV radiation. We present experiments where few-cycle puls...
1 Citations Download PDF Cite
12345678