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744 results on '"Spagnolo, Vincenzo"'

205. ll mare cancella, il mare conserva. Nuove evidenze sulle dinamiche di popolamento degli ultimi Neandertal in Italia centrale da Grotta di Cala dei Santi (Grosseto)

Author

Spagnolo, Vincenzo, Aureli, Daniele, Araujo, Astolfo, Berto, Claudio, Boschin, Francesco, Capecchi, Giulia, Crezzini, Jacopo, Freguglia, Margherita, Hublin, Jean-Jacques, Marciani, Giulia, Montanari-Canini, Guido, Parenti, Fabio, Arrighi, Simona, Talamo, Sahra, Moroni, Adriana, Anthropologie des techniques, des espaces et des territoires au Pliocène et au Pléistocène (AnTET), Archéologies et Sciences de l'Antiquité (ArScAn), Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS)-Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), U.R. Ecologia Preistorica, Dipartimento di Scienze Ambientali ', Dipartimento di Studi Umanistici [Ferrare], Università degli Studi di Ferrara (UniFE), Dipartimento di Scienze Fisiche, della Terra e dell'Ambiente., Università degli Studi di Siena = University of Siena (UNISI), Chaire internationale Paléoanthropologie, Collège de France (CdF (institution)), Department of Human Evolution [Leipzig], Max Planck Institute for Evolutionary Anthropology [Leipzig], Max-Planck-Gesellschaft-Max-Planck-Gesellschaft, Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris 8 Vincennes-Saint-Denis (UP8)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Institut national de recherches archéologiques préventives (Inrap)-Centre National de la Recherche Scientifique (CNRS)-Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris 8 Vincennes-Saint-Denis (UP8)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Institut national de recherches archéologiques préventives (Inrap)-Centre National de la Recherche Scientifique (CNRS), Università degli Studi di Ferrara = University of Ferrara (UniFE), and Collège de France - Chaire internationale Paléoanthropologie

Subjects
[SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory, ComputingMilieux_MISCELLANEOUS, [SHS]Humanities and Social Sciences
Abstract

International audience

Published
2016

206. Continuità e discontinuità al Riparo dell’Oscurusciuto (Ginosa, Taranto). Gli ultimi neandertaliani in Sud Italia

Author

Marciani, Giulia, Spagnolo, Vincenzo, Aureli, Daniele, Boscato, Paolo, Ronchitelli, Annamaria, Anthropologie des techniques, des espaces et des territoires au Pliocène et au Pléistocène (AnTET), Archéologies et Sciences de l'Antiquité (ArScAn), Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS)-Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), U.R. Ecologia Preistorica, Dipartimento di Scienze Ambientali ', and Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris 8 Vincennes-Saint-Denis (UP8)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Institut national de recherches archéologiques préventives (Inrap)-Centre National de la Recherche Scientifique (CNRS)-Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris 8 Vincennes-Saint-Denis (UP8)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Institut national de recherches archéologiques préventives (Inrap)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory, ComputingMilieux_MISCELLANEOUS, [SHS]Humanities and Social Sciences
Abstract

International audience

Published
2016

207. Microprobe photoluminescence assessment of the wall-plug efficiency in interband cascade lasers

Author

Vitiello, Miriam S., Scamarcio, Gaetano, Spagnolo, Vincenzo, Bewley, William W., Kim, Mijin, Chul-Soo Kim, Vurgaftman, Igor, Meyer, Jerry R., and Lops, Antonia

Subjects
Lasers -- Usage, Photoluminescence -- Evaluation, Arsenic -- Thermal properties, Indium -- Thermal properties, Laser, Physics
Abstract

A microprobe photoluminescence (PL) technique was employed to determine the thermal resistance and wall-plug efficiency of narrow-ridge interband cascade lasers emitting at 3.8 [mu]m. The data obtained indicated a vertical thermal conductivity of ~5.5 W/m K for the SL cladding layer and a maximum wall-plug efficiency of 8.1%.

Published
2008

210. Simultaneous dual-gas QEPAS detection based on a fundamental and overtone combined vibration of quartz tuning fork

Author

Wu, Hongpeng, primary, Yin, Xukun, additional, Dong, Lei, additional, Pei, Kailong, additional, Sampaolo, Angelo, additional, Patimisco, Pietro, additional, Zheng, Huadan, additional, Ma, Weiguang, additional, Zhang, Lei, additional, Yin, Wangbao, additional, Xiao, Liantuan, additional, Spagnolo, Vincenzo, additional, Jia, Suotang, additional, and Tittel, Frank K., additional

Published
2017
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214. Double antinode excited quartz-enhanced photoacoustic spectrophone

Author

Zheng, Huadan, primary, Dong, Lei, additional, Patimisco, Pietro, additional, Wu, Hongpeng, additional, Sampaolo, Angelo, additional, Yin, Xukun, additional, Li, Shangzhi, additional, Ma, Weiguang, additional, Zhang, Lei, additional, Yin, Wangbao, additional, Xiao, Liantuan, additional, Spagnolo, Vincenzo, additional, Jia, Suotang, additional, and Tittel, Frank K., additional

Published
2017
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217. Filling the terahertz gap

Author

Scamarcio, G., Vitiello, M. S., and Spagnolo, Vincenzo Luigi

Subjects
THz photonics, quantum cascade laser, THz spectroscopy
Published
2015

218. Integration between spatial analysis in a GIS environment and 3D models for the study of Middle Palaeolithic contexts: Molare Rockshelter (Scario – SA) and Oscurusciuto Rockshelter (Ginosa – TA)

Author

Spagnolo, Vincenzo, Aureli, Daniele, Boscato, Paolo, Boschin, Francesco, Crezzini, Jacopo, Marciani, Giulia, Ricci, Stefano, Ronchitelli, Annamaria, Poggi, Giulio, Anthropologie des techniques, des espaces et des territoires au Pliocène et au Pléistocène (AnTET), Archéologies et Sciences de l'Antiquité (ArScAn), Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris 8 Vincennes-Saint-Denis (UP8)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Institut national de recherches archéologiques préventives (Inrap)-Centre National de la Recherche Scientifique (CNRS)-Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris 8 Vincennes-Saint-Denis (UP8)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Institut national de recherches archéologiques préventives (Inrap)-Centre National de la Recherche Scientifique (CNRS), U.R. Ecologia Preistorica, Dipartimento di Scienze Ambientali ', Dipartimento di Scienze Fisiche, della Terra e dell'Ambiente., Università degli Studi di Siena = University of Siena (UNISI), and Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS)-Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory, ComputingMilieux_MISCELLANEOUS, [SHS]Humanities and Social Sciences
Abstract

International audience

Published
2015

219. Mid-Infrared Quartz-Enhanced Photoacoustic Sensor for ppb-Level CO Detection in a SF6Gas Matrix Exploiting a T-Grooved Quartz Tuning Fork

Author

Sun, Bo, Zifarelli, Andrea, Wu, Hongpeng, Dello Russo, Stefano, Li, Shangzhi, Patimisco, Pietro, Dong, Lei, and Spagnolo, Vincenzo

Abstract

An optical sensor for highly sensitive detection of carbon monoxide (CO) in sulfur hexafluoride (SF6) was demonstrated by using the quartz-enhanced photoacoustic spectroscopy technique. A spectrophone composed of a custom 8 kHz T-shaped quartz tuning fork with grooved prongs and a pair of resonator tubes, to amplify the laser-induced acoustic waves, was designed aiming to maximize the CO photoacoustic response in SF6. A theoretical analysis and an experimental investigation of the influence of SF6gas matrix on spectrophone resonance properties for CO detection have been provided, and the performances were compared with the standard air matrix. A mid-infrared quantum cascade laser with a central wavelength at 4.61 μm, resonant with the fundamental band of CO, and an optical power of 20 mW was employed as the light excitation source. A minimum detection limit of 10 ppb at 10 s of integration time was achieved, and a sensor response time of ∼3 min was measured.

Published
2020
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222. N2-cooled THz quartz-enhanced photoacoustic sensor operating in pulsed mode for hydrogen sulfide detection in the part-per-billion concentration range

Author

Razeghi, Manijeh, Lewis, Jay S., Khodaparast, Giti A., Khalili, Pedram, Zifarelli, Andrea, Sampaolo, Angelo, Patimisco, Pietro, Giglio, Marilena, Yu, Chenren, Zhu, Huan, Zhu, Haiqing, Chang, Gaolei, Wang, Fangfang, Chen, Jianxin, Li, Lianhe, Davies, A. Giles, Linfield, Edmund H., He, Li, Wei, Tingting, Wu, Hongpeng, Dong, Lei, Xu, Gangyi, Tittel, Frank K., and Spagnolo, Vincenzo

Published
2020
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225. Synthesis and characterization of CdS nanoclusters in a quaternary microemulsion: the role of the cosurfactant

Author

Curri, Maris Lucia, Agotiano, Angela, Manna, Liberato, Lugara, Mario, Monica, Mario Della, Spagnolo, Vincenzo, Catalano, Massimo, and Chiavarone, Luca

Subjects
Photoluminescence -- Observations, Chemical synthesis -- Research, Cadmium -- Chemical properties, Cadmium -- Research, Chemicals, plastics and rubber industries
Abstract

A novel synthetic medium is exploited, consisting of a quaternary CTAB/n-pentanol/n-hexane/water microemulsion. Nanoparticles are then characterized by using UV-vis and photoluminescence spectroscopy, High-Resolution Transmission Electron Microscopy, and Raman spectroscopy.

Published
2000

227. Quartz-Enhanced Photoacoustic Sensing of H2S

Author

Borri, S., Siciliani de Cumis, M., Viciani, S., D'Amato, F., De Natale, P., Patimisco, P., Scamarcio, G., and Spagnolo, Vincenzo Luigi

Subjects
Gas Sensing, Laser
Published
2014

240. Single-tube on-beam quartz-enhanced photoacoustic spectroscopy

Author

Zheng, Huadan, primary, Dong, Lei, additional, Sampaolo, Angelo, additional, Wu, Hongpeng, additional, Patimisco, Pietro, additional, Yin, Xukun, additional, Ma, Weiguang, additional, Zhang, Lei, additional, Yin, Wangbao, additional, Spagnolo, Vincenzo, additional, Jia, Suotang, additional, and Tittel, Frank K., additional

Published
2016
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247. Low-loss and single-mode tapered hollow-core waveguides optically coupled with interband and quantum cascade lasers.

Author

Giglio, Marilena, Patimisco, Pietro, Sampaolo, Angelo, Kriesel, Jason M., Tittel, Frank K., and Spagnolo, Vincenzo

Subjects
QUANTUM cascade lasers, OPTICAL waveguides, SINGLE-mode optical fibers
Abstract

We report single-mode midinfrared laser beam delivery through a 50-cm-long tapered hollow-core waveguide (HCW) having bore diameter linearly increasing from 200 to 260 µm. We performed theoretical calculations to identify the best HCW-laser coupling conditions in terms of optical losses and single-mode fiber output. To validate our modeling, we coupled the HCW with an interband cascade laser and four quantum cascade lasers with their emission wavelengths spanning 3.5 to 7.8 µm, using focusing lenses with different focal lengths. With the best coupling conditions, we achieved single-mode output in the investigated 3.5 to 7.8 µm spectral range, with minimum transmission losses of 1.27 dB at 6.2 µm. [ABSTRACT FROM AUTHOR]

Published
2018
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248. Electronic spatial distribution of In0.53Ga0.47As/AlAs0.56Sb0.44 quantum-cascade lasers.

Author

Vitiello, Miriam S., Scamarcio, Gaetano, Spagnolo, Vincenzo, Revin, Dmitry G., Cockburn, John, Steer, Matthew J., and Airey, Robert J.

Subjects
LASERS, OPTOELECTRONIC devices, PHOTOLUMINESCENCE, LUMINESCENCE, SEMICONDUCTORS, ELECTRIC conductivity
Abstract

We have investigated the band-to-band photoluminescence of In0.53Ga0.47As/AlAs0.56Sb0.44 quantum-cascade devices operating at λ∼4.3 μm, based either on normally grown or nominally As-terminated interfaces. This technique allowed us to probe the spatial distribution of conduction electrons as a function of the applied voltage and to correlate the quantum design of devices with their thermal performance. [ABSTRACT FROM AUTHOR]

Published
2005
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