Zobrazeno 1 - 10
of 52
pro vyhledávání: '"P. G. Gucciardi"'
Autor:
S. Ferretti, S. Marrara, D. Bronte Ciriza, A. Magazzù, A. Foti, P. G. Gucciardi, A. Musolino, L. Folco, V. Della Corte, A. Rotundi, R. Saija, A. Mandanici, O. M. Maragò, M. G. Donato
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 2, p 287 (2024)
Extraterrestrial material collected during space missions is highly exposed to contamination issues during on-Earth analysis. Although high-protection-level protocols were developed, to minimize the contamination due to sample manipulation and the su
Externí odkaz:
https://doaj.org/article/39ea0b422e2b4696b5304908bf48f2cf
Autor:
A. Magazzù, D. Bronte Ciriza, A. Musolino, A. Saidi, P. Polimeno, M. G. Donato, A. Foti, P. G. Gucciardi, M. A. Iatì, R. Saija, N. Perchiazzi, A. Rotundi, L. Folco, O. M. Maragò
Publikováno v:
The Astrophysical Journal, Vol 942, Iss 1, p 11 (2022)
Cosmic dust plays a dominant role in the universe, especially in the formation of stars and planetary systems. Furthermore, the surface of cosmic dust grains is the benchwork where molecular hydrogen and simple organic compounds are formed. We manipu
Externí odkaz:
https://doaj.org/article/ae48458972544e62966a0acfacd9d1f5
Autor:
P. G. Gucciardi, J.-C. Valmalette, M. Lopes, R. Deturche, M. Lamy de la Chapelle, D. Barchiesi, F. Bonaccorso, C. D'Andrea, M. Chaigneau, G. Picardi, R. Ossikovski
Publikováno v:
Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, Vol 89, Iss S1, Pp C1V89S1P042-1 (2011)
We report on the effects of light depolarization induced by sharp metallic tips in Tip-Enhanced Raman Spectroscopy (TERS). Experiments on Si(001) and GaAs(001) crystals show that the excitation field depolarization induces a selective enhancement of
Externí odkaz:
https://doaj.org/article/62d54f7fb48c426f89439cbfea8932a8
Autor:
B. Fazio, P. G. Gucciardi, C. D'Andrea, A. Irrera, F. Bonaccorso, G. Calogero, C. Vasi, M. Allegrini, A. Toma, D. Chiappe, C. Martella, F. Buatier de Mongeot
Publikováno v:
Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, Vol 89, Iss S1, Pp C1V89S1P034-1 (2011)
We study the polarized Surface Enhanced Raman Scattering from randomly oriented molecules adsorbed on near-field coupled gold nanowires. We show that the scattering is polarized always along the wire-to-wire nanocavities. We find the exact angular de
Externí odkaz:
https://doaj.org/article/6bb7f37660ab404d8ff340b39d0c2d85
Publikováno v:
Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, Vol 89, Iss S1, Pp C1V89S1P000-1 (2011)
Electromagnetic and Light Scattering crosses the boundaries of many science and engineering disciplines. It is central to both fundamental and applied research in astrophysics, atmospheric physics, geophysics, materials science, nano-optics, biology,
Externí odkaz:
https://doaj.org/article/ad16ff201c41417f9b11ea2db16ec474
Autor:
F. Neri, G. Compagnini, P. G. Gucciardi, O. M. Maragò, C. D'Andrea, B. Fazio, M. G. Donato, E. Fazio, C. Satriano, E. Messina, L. D'Urso
Publikováno v:
Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, Vol 89, Iss S1, Pp C1V89S1P064-1 (2011)
The plasmon resonance of metallic Au/Ag alloys in the colloidal state was tuned from 400 nm to 500 nm using a laser irradiated technique, performed directly in the liquid state. Interesting optical nonlinearities, trapping effects and spectroscopic e
Externí odkaz:
https://doaj.org/article/3330af7c82764a2198c8974d4c14c962
Publikováno v:
Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, Vol 89, Iss S1, Pp C1V89S1P035-1 (2011)
Controlled creation of SERS-active hot spots in liquid is a challenge in which optical forces can play an important role by promoting the aggregation of metal nanoparticles by optical trapping or by exploiting the radiation pressure. Here we show tha
Externí odkaz:
https://doaj.org/article/39ef9574daa74c72bc8f6617c62027e5
Publikováno v:
Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, Vol 89, Iss S1, Pp C1V89S1P025-1 (2011)
Multi-wavelength SERS measurements on dyes molecules adsorbed on gold evaporated nanoparticles substrates are presented. The spectra are correlated with the Localized Surface Plasmon Resonance (LSPR) profile of the nanostructured substrate before and
Externí odkaz:
https://doaj.org/article/6b3936607f1b414390ebc23ec4bcad0d
Autor:
S. Vasi, M. A. Monaca, M. G. Donato, F. Bonaccorso, G. Privitera, O. Trushkevych, G. Calogero, B. Fazio, A. Irrera, M. A. Iati', R. Saija, P. Denti, F. Borghese, P. H. Jones, A. C. Ferrari, P. G. Gucciardi, O. M. Marago'
Publikováno v:
Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, Vol 89, Iss S1, Pp C1V89S1P090-1 (2011)
We study optical trapping of nanotubes and graphene. We extract the distribution of both centre-of-mass and angular fluctuations from three-dimensional tracking of these optically trapped carbon nanostructures. The optical force and torque constants
Externí odkaz:
https://doaj.org/article/40690372942b4319a7b31e09684eff0f
Publikováno v:
The European Physical Journal Plus
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=r3c4b2081b22::586d1f398a1b4b9c995778001da44e3c