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Akademický článek

Raman spectroscopy of graphene under ultrafast laser excitation

Autor: Ferrante Carino, Virga Alessandra, Benfatto Lara, Martinati Miles, De Fazio Domenico, Sassi Ugo, Fasolato Claudia, Ott Anna K., Postorino Paolo, Yoon Duhee, Cerullo Giulio, Mauri Francesco, Ferrari Andrea C., Scopigno Tullio

Publikováno v: EPJ Web of Conferences, Vol 205, p 05003 (2019)

The out-of-equilibrium Raman response of graphene is addressed by pulsed laser excitation. Phonon spectrum is rationalized by revisiting the electron-phonon picture in the light of a transient broadening of the Dirac cone.

Externí odkaz: https://doaj.org/article/dae286571b03499c91440bd448c35696

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Akademický článek

Real-time observation of the intravalley spin-flip process in single-layer WS2

Autor: Wang Zilong, Molina-Sanchez Alejandro, Altmann Patrick, Sangalli Davide, De Fazio Domenico, Soavi Giancarlo, Sassi Ugo, Bottegoni Federico, Ciccacci Franco, Finazzi Marco, Wirtz Ludger, Ferrari Andrea, Marini Andrea, Cerullo Giulio, Dal Conte Stefano

Publikováno v: EPJ Web of Conferences, Vol 205, p 05012 (2019)

We use helicity-resolved transient absorption spectroscopy to track intravalley scattering dynamics in monolayer WS2. We find that spin-polarized carriers scatter from upper to lower conduction band by reversing their spin orientation on a sub-ps tim

Externí odkaz: https://doaj.org/article/0348a7dc86c144aa9fc17f2826ef4e05

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ComFeel: Productivity is a Matter of the Senses Too

Autor: Constantinides, Marios, Šćepanović, Sanja, Quercia, Daniele, Li, Hongwei, Sassi, Ugo, Eggleston, Michael

Publikováno v: IMWUT: 2020, 4(4), 123

Indoor environmental quality has been found to impact employees' productivity in the long run, yet it is unclear its meeting-level impact in the short term. We studied the relationship between sensorial pleasantness of a meeting's room and the meetin

Externí odkaz: http://arxiv.org/abs/2109.05930

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Optoelectronic mixing with high frequency graphene transistors

Autor: Montanaro, Alberto, Wei, Wei, De Fazio, Domenico, Sassi, Ugo, Soavi, Giancarlo, Ferrari, Andrea C, Happy, Henri, Legagneux, Pierre, Pallecchi, Emiliano

Graphene is ideally suited for optoelectronic applications. It offers absorption at telecom wavelengths, high-frequency operation and CMOS-compatibility. We report optoelectronic mixing up to to 67GHz using a back-gated graphene field effect transist

Externí odkaz: http://arxiv.org/abs/1905.09967

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p-wave triggered superconductivity in single layer graphene on an electron-doped oxide superconductor

Autor: Di Bernardo, Angelo, Millo, Oded, Barbone, Matteo, Alpern, Hen, Kalcheim, Yoav, Sassi, Ugo, Ott, Anna, De Fazio, Domenico, Yoon, Duhee, Amado, Mario, Ferrari, Andrea C., Linder, Jacob, Robinson, Jason W. A.

Publikováno v: Nature Communications 8, 14024 (2017)

Electron pairing in the vast majority of superconductors follows the Bardeen-Cooper-Schrieffer theory of superconductivity, which describes the condensation of electrons into pairs with antiparallel spins in a singlet state with an s-wave symmetry. U

Externí odkaz: http://arxiv.org/abs/1702.01572

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On-chip integrated, silicon-graphene plasmonic Schottky photodetector, with high responsivity and avalanche photogain

Autor: Goykhman, Ilya, Sassi, Ugo, Desiatov, Boris, Mazurski, Noa, Milana, Silvia, de Fazio, Domenico, Eiden, Anna, Khurgin, Jacob, Shappir, Joseph, Levy, Uriel, Ferrari, Andrea C.

Publikováno v: Nano Lett. 16, 3005 (2016)

We report an on-chip integrated metal-graphene-silicon plasmonic Schottky photodetector with 85mA/W responsivity at 1.55 um and 7% internal quantum efficiency. This is one order of magnitude higher than metal-silicon Schottky photodetectors operated

Externí odkaz: http://arxiv.org/abs/1512.08153

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