SOLIGNAC Pierre
Organisme : CNRS
Ingénieur d'étude
Autre(s) thème(s) de recherche ou rattachement(s) : - Electronique et imagerie
Pierre.Solignac

univ-montp2.fr       

0467143465

Bureau: 62.0, Etg: 3, Bât: 13 - Site : Campus Triolet
Domaines de Recherche: - Sciences de l'ingénieur/Matériaux
- Physique/Physique/Physique Générale
- Physique/Matière Condensée/Science des matériaux
- Physique/Matière Condensée/Systèmes mésoscopiques et effet Hall quantique
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Dernieres productions scientifiques :

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Electrical, textural and structural characterization of EMIMAc silica ionogels and their corresponding aerogels 
Auteur(s): Bengourna Nadjette, BONNET L., Courson R., DESPETIS F., OLIVI-TRAN N., SOLIGNAC P., Satha Hamid
(Document sans référence bibliographique) 2013-00-00
Ref HAL: hal-00780352_v1
Résumé: Silica gels were synthesized from TMOS and MTMS in different proportions changing the ionic liquid concentration. EMIMac have significant influence in the gelation processe. The textural characterizations showed an effect of these concentrations on the corresponding aerogels: pore size distributions and effectives surfaces. The structure of the aerogels was measured with a SAXS apparatus and was typical of acid catalyzed aerogels. Conductivity measurements, operated on the ionogels, were carried out using an original electrical 4 electrodes set up which allowed us to study the ionic conductivity at the pore scale. The results obtained showed that one can model the electrical temporal response of the EMIMAc silica ionogel with a RLC series circuit.
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Plasma wave detectors for Terahertz wireless communication and fast imaging applications 
Auteur(s): TEPPE F. , Blin S, COQUILLAT D., DIAKONOVA N., Tohme L, CHENAUD B., Hisatake S, Arakawa K, Torres J, CONSEJO C., Nouvel P, SOLIGNAC P., Penarier A, Nagatsuma T, KNAP W.
Conference: 37th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2012 (Wollongong, NSW, AU, 2012-09-23)
Actes de conférence: Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2012 37th International Conference on, vol. p.1 (2012)
Ref HAL: hal-00816950_v1
Résumé: We report on Terahertz wireless communications and fast imaging experiments at 300 GHz, using nanometer-sized transistors as detectors. The physical mechanism of the detection is related to the overdamped plasma waves in the transistor channel.
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Terahertz Detection of quantum cascade laser emission by plasma waves in Nano-transistors 
Auteur(s): CHENAUD B., TEPPE F., CONSEJO C., Torres J., SOLIGNAC P., DIAKONOVA N., COQUILLAT D., CHAUBET C., Wasilewski Z.r., Zholudev M., KNAP W., El fatimy A.
Conference: International TeraNano &GDRI Workshop (, JP, 2011-11-24)
Actes de conférence: Extended Abstract, vol. p.28P-05 (2011)
Ref HAL: hal-00814909_v1
Résumé: Terahertz Detection of quantum cascade laser emission by plasma waves in Nano-transistors
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First communication link using a 300-GHz source and a Si plasma-wave detector 
Auteur(s): Paquet R., Lapeine D., Blin S., Guillet J.-p., Nouvel P., Torres J., Penarier A., Varani L., SOLIGNAC P., COQUILLAT D., TEPPE F., KNAP W.
Conference: International TeraNano &GDRI Workshop (, JP, 2011-11-24)
Actes de conférence: Extended abstracts, vol. p.28P-07 (2011)
Ref HAL: hal-00814904_v1
Résumé: First communication link using a 300-GHz source and a Si plasma-wave detector
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Terahertz Detection of Quantum Cascade Laser Emission by Plasma Waves in Field Effect Transistors 
Auteur(s): TEPPE F., CONSEJO C., Torres J., CHENAUD B., SOLIGNAC P., Fathololoumi S., Wasilewski Z. r., Zholudev M., DIAKONOVA N., COQUILLAT D., El fatimy A., BUZATU P., CHAUBET C., KNAP W.
(Article) Publié:
Acta Physica Polonica A, vol. 120 p.930-932 (2011)
Ref HAL: hal-00814490_v1
Résumé: We report on the resonant detection of a 3.1 THz radiation produced by a quantum cascade laser using a 250 nm gate length GaAs/AlGaAs field effect transistor at liquid nitrogen temperature. We show that the physical mechanism of the detection is related to the plasma waves excited in the transistor channel. The detection is enhanced by increasing the drain current and driving the transistor into saturation regime. These results clearly show that plasma wave nanometer-size transistors can be used as detectors in all-solid-state terahertz systems where quantum cascade lasers act as sources.
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