Publicaciones

Affichage de 8891 à 8900 sur 16271


  • Communication dans un congrès

B(Al,Ga)N materials capability for advanced optic devices structures in the UV range

S. Gautier, M. Abid, T. Moudakir, G. Orsal, V. Ravindran, O. Naciri, A. Migan-Dubois, Z. Djebbour, David Troadec, A. Soltani, G. Patriarche, A. Ougazzaden

SPIE 2011, Jan 2011, San Francisco, United States. ⟨hal-00578877⟩

  • Article dans une revue

Deep structural analysis of novel BGaN material layers grown by MOVPE

S. Gautier, G. Patriarche, T. Moudakir, M. Abid, G. Orsal, K. Pantzas, David Troadec, A. Soltani, L. Largeau, O. Mauguin, A. Ougazzaden

BGaN ternary alloys with 0.7% and 1.7% boron grown on GaN/sapphire template substrates by metalorganic vapour phase epitaxy (MOVPE) have been investigated through HAADF-STEM. At low boron content, 0.7%, no compositional fluctuations were observed with XRD or STEM measurements. Photoluminescence at...

Journal of Crystal Growth, 2011, 315 (1), pp.288-291. ⟨10.1016/j.jcrysgro.2010.08.042⟩. ⟨hal-00554231⟩

  • Article dans une revue

Structural and optical properties of nanodots, nanowires, and multi-quantum wells of III-nitride grown by MOVPE nano-selective area growth

W.H. Goh, G. Patriarche, P.L. Bonanno, S. Gautier, T. Moudakir, M. Abid, G. Orsal, A.A. Sirenko, Z.-H. Cai, A. Martinez, A. Ramdane, L. Le Gratiet, David Troadec, A. Soltani, A. Ougazzaden

Nanodots, nanowires, and semi-polar quantum well structures of GaN-based material have been grown by nano-selective area growth (NSAG). The growth evolution of the nanostructure has been studied. Cross-sectional transmission electron microscopy (TEM) shows that the nanostructures are free of...

Journal of Crystal Growth, 2011, 315 (1), pp.160-163. ⟨10.1016/j.jcrysgro.2010.08.053⟩. ⟨hal-00554254⟩

  • Communication dans un congrès

Accuracy of specular path estimates with ESPRIT and RiMAX in the presence of measurement-based diffuse multipath components

D.P. Gaillot, E. Tanghe, P. Stefanut, W. Joseph, M. Lienard, Pierre Degauque, L. Martens

5th European Conference on Antennas and Propagation, EuCAP 2011, 2011, Italy. pp.3619-3622. ⟨hal-00603111⟩

  • Article dans une revue

Design, realization, and test of a 2.1-GHz low-phase-noise oscillator based on BAW resonator

M.D. Li, S. Seok, N. Rolland, P.A. Rolland

Microwave and Optical Technology Letters, 2011, 53, pp.405-409. ⟨10.1002/mop.25690⟩. ⟨hal-00572638⟩

  • Article dans une revue

A 45° silicon mirror for acoustic propagation parallel to the plane of the substrate

S. Wang, Julien Carlier, Pierre Campistron, Wei-Jiang Xu, Dorothée Debavelaere-Callens, Bertrand Nongaillard, Assane Ndieguene, X. Zhao

The interest of a thin silicon oxide layer on a {110} silicon crystal planes used as 45° acoustical mirrors for reflection has been demonstrated. Passive mirror-like planes (groove depth ∼ 150 μm) were fabricated by wet chemical etching of (100) silicon. High frequency acoustical longitudinal waves...

Journal of Physics: Conference Series, 2011, 269, pp.012009-1-10. ⟨10.1088/1742-6596/269/1/012009⟩. ⟨hal-00572671⟩