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Affichage de 12881 à 12890 sur 16261

Article dans une revue

Terahertz detection by GaN/AlGaN transistors

Abdelouahad El Fatimy, Stephane Boubanga Tombet, Frederic Teppe, Wojciech Knap, D. B. Veksler, S. Rumyantsev, M. S. Shur, N. Pala, R. Gaska, Q. Fareed, X. Hu, D. Seliuta, G. Valusis, Christophe Gaquière, D. Theron, A. Cappy

Detection of subterahertz and terahertz radiation by high electron mobility GaN/AlGaN transistors in the 0.2-2.5 THz frequency range (much higher than the cutoff frequency of the transistors) is reported. Experiments were performed in the temperature range 4-300 K For the lowest temperatures, a…

Electronics Letters, 2006, 42, pp.1342-1344. ⟨10.1049/cl:20062452⟩. ⟨hal-00540638⟩

Communication dans un congrès

Efficient spreading code allocation strategy for a downlink MC-CDMA system in a time varying frequency selective channel

H. El Ghazi, C. Garnier, Y. Delignon

2006, 5 pp. ⟨hal-00154925⟩

Article dans une revue

Resonator induced plasmon filter : theoretical study

L. Dobrzynski, Housni Al-Wahsh, Bahram Djafari-Rouhani, Gregorio Hernandez-Cocoletzi, Abdellatif Akjouj

We study theoretically the plasmon mediated propagation of light through a chain of metallic nanoparticles along which a small chain (called a resonator) is attached vertically. The effect of this vertical resonator is to induce peaks and zeros in the transmission power. We show that, with a…

Journal of Physics: Condensed Matter, 2006, 18, pp.9047-9054. ⟨hal-00154927⟩

Communication dans un congrès

Microspectroscopy with terahertz bioMEMS

Tahsin Akalin, A. Treizebre

Biological applications require more and more compact, sensitive and reliable microsystems. We will present solutions in order to realize a "microspectroscopy" up to Terahertz frequencies of various biological entities (living cell, neurons, proteins...). We investigate these entities in…

SPIE PHOTONICS EUROPE, Apr 2006, Strasbourg, France. pp.61860E-1-11, ⟨10.1117/12.662966⟩. ⟨hal-00152959⟩

Communication dans un congrès

Raman spectroscopy and AFM characterization on individual Si-based nanowires

M. Marczak, M. Zdrojek, W. Gebicki, C. Jastrzebski, Thierry Melin, D. Hourlier

European Material Research Society Spring Meeting, E-MRS - IUMRS - ICEM 06, Symposium E : Science and Technology of Nanotubes and Nanowires, 2006, Nice, France. ⟨hal-00243973⟩