1. Gamma and x-ray irradiation effects on different Ge and Ge/F doped optical fibersAziz Boukenter, N. Richard, Marco Cannas, Claude Marcandella, Layla Martin-Samos, Simonpietro Agnello, Diego Di Francesca, Mattia Fanetti, Imene Reghioua, Sylvain Girard, Antonino Alessi, Youcef Ouerdane, 2015, original scientific article Found in: ključnih besedah
Keywords: optical fibers, Germanium, doping, cathodoluminescence, irradiation effect
Published: 11.04.2016; Views: 4091; Downloads: 0
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3. The filter loading effect by ambient aerosols in filter absorption photometers depends on the mixing state of the sampled particlesHans Moosmüller, Agnes Fülöp-Miller, Rajan K. Chakrabarty, Ian J. Arnold, Olivier Favez, Jean Sciare, Andre S.H. Prevot, Jean-Eudes Petit, Emily Anne Bruns, Robert Wolf, Peter Zotter, Asta Gregorič, Luka Drinovec, Griša Močnik, 2016, original scientific article Found in: ključnih besedah
Keywords: black carbon, mixing state, Aethalometer, filter-loading effect
Published: 02.11.2016; Views: 4106; Downloads: 244
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6. Influence of clouds on black carbon direct radiative effect and heating rate over MilanAsta Gregorič, Luca Ferrero, Griša Močnik, S. Cogliati, F. Barnaba, L. Di Liberto, G. P. Gobbi, E. Bolzacchini, 2017, published scientific conference contribution abstract Found in: ključnih besedah
Keywords: black carbon, direct radiative effect, heating rate, clouds
Published: 10.10.2017; Views: 3108; Downloads: 177
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7. Photothermal lens technique: a comparison between conventional and self-mixing schemesJohn Fredy Barrera Ramírez, Dorota Korte, Jose Juan Suárez-Vargas, Jehan Akbar, Evelio E. Ramírez-Miquet, Fatima Matroodi, Imrana Ashraf, Humberto Cabrera, Hanna Budasheva, Joseph J. Niemela, 2019, original scientific article Abstract: This work focuses on assessing the analytical capabilities of a new photothermal lens method based on the self-mixing effect to reliably measure metallic traces in water-ethanol solutions. We compare it with the conventional thermal lens scheme, considering the low detection limit and versatility. A theoretical model is presented to describe the laser power variations as a function of the photothermal parameters of the analyzed sample. The experimental results demonstrate that the laser intensity variations, induced by the external optical feedback, are governed by
the photothermal lens effect. Measurements of Fe(II)-1,10-phenanthroline in water–ethanol solutions show a favourable correspondence and agreement with the theory. The low detection limits obtained by the two analytic techniques also agree very well. Nevertheless, our instrument presents advantages regarding compactness and simplicity, suggesting that this platform could be potentially useful as a robust analytical tool for metallic trace detection. In addition, calibration of the method is performed by measuring the so-called self-mixing constant.
Found in: ključnih besedah
Summary of found: ...photothermal lens method based on the self-mixing effect to reliably measure metallic traces in water-ethanol...
Keywords: thermal lens, photothermal spectroscopy, self-mixing effect, trace detection
Published: 05.04.2019; Views: 2124; Downloads: 0
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8. Incorporation of Sc into the structure of barium-hexaferrite nanoplatelets and its ex-traordinary finite-size effect on the magnetic propertiesSašo Gyergyek, Tanja Goršak, Goran Dražić, Blaž Belec, Matej Komelj, Darko Makovec, Darja lisjak, 2019, original scientific article Found in: ključnih besedah
Keywords: Nanoparticles, Magnetic properties, Size effect, Structure properties relationship, Ferrite.
Published: 06.05.2019; Views: 1822; Downloads: 0
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10. Photoelectric effect with a twistAlberto Simoncig, Benedikt Rösner, Barbara Ressel, Oksana Plekan, Najmeh Mirian, Andrej Mihelič, Micheal Meyer, Michele Manfredda, Špela Krušič, Klaus Hansen, Luca Giannessi, Michele DI Fraia, Alexander Demidovich, Christian David, Miltcho B. Danailov, Marcello Coreno, Enrico Allaria, Primož Rebernik Ribič, Jonas Wätzel, Giovanni De Ninno, Simone Spampinati, Janez Štupar, Matjaž Žitnik, Marco Zangrando, Carlo Callegari, Jamal Berakdar, 2020, original scientific article Abstract: Photons have fixed spin and unbounded orbital angular momentum (OAM). While the former is manifested in the polarization of light, the latter corresponds to the spatial phase distribution of its wavefront1. The distinctive way in which the photon spin dictates the electron motion upon light– matter interaction is the basis for numerous well-established spectroscopies. By contrast, imprinting OAM on a mat- ter wave, specifically on a propagating electron, is gener- ally considered very challenging and the anticipated effect undetectable2. In refs. 3,4, the authors provided evidence of OAM-dependent absorption of light by a bound electron. Here, we seek to observe an OAM-dependent dichroic photo- electric effect, using a sample of He atoms. Surprisingly, we find that the OAM of an optical field can be imprinted coher- ently onto a propagating electron wave. Our results reveal new aspects of light–matter interaction and point to a new kind of single-photon electron spectroscopy.
Found in: ključnih besedah
Keywords: FEL, OAM, Photoelectric effect
Published: 09.09.2020; Views: 1536; Downloads: 0
Fulltext (2,45 MB) |
