Publications

• Article dans une revue

Epitaxial Bi2Sr2Co2Oy thin films as a promising p-type transparent conducting oxides

Shufang Wang, Liqing Sun, Hongrui Zhang, El Hadj Dogheche, Jianglong Wang, Guangsheng Fu

Transparent conductive p-type Bi2Sr2Co2Oy thin films were epitaxial grown on LaAlO3 substrate by pulsed laser deposition. Film with thickness of 50 nm showed a room temperature resistivity of about 5.5 mΩ cm and an average optical transmittance of about 51% in the visible region, resulting in a…

Optical Materials Express, 2014, 4 (10), pp. 2209-2214. ⟨hal-03682662⟩

• Article dans une revue

Ingénierie des matériaux artificiels électromagnétiques : cristaux photoniques et métamatériaux

D. Lippens

Le développement des techniques de micro-structuration des matériaux diélectriques et des composés métalliques permet actuellement un contrôle sans précédent de l'interaction des ondes électromagnétiques avec les matériaux artificiels. Nous illustrons ici l'ingénierie de telles structures…

Photoniques, 2014, 69, pp.31-34. ⟨10.1051/photon/20146931⟩. ⟨hal-00954473⟩

• Article dans une revue

Terahertz wireless communication using GaAs transistors as detectors

L. Tohme, S. Blin, Guillaume Ducournau, P. Nouvel, D. Coquillat, S. Hisatake, T. Nagatsuma, A. Pénarier, L. Varani, W. Knap, Jean-Francois Lampin

The detection of high data-rate wireless communication using a terahertz- frequency carrier, and a GaAs transistor as a detector, is reported. Communications are investigated around 0.2 and 0.3087 THz. For the first time, an error-free transmission at data rates up to 8.2 Gbit/s is demonstrated,…

Electronics Letters, 2014, 50, pp.323-325. ⟨10.1049/el.2013.3702⟩. ⟨hal-00954475⟩

• Article dans une revue

Optical waveguiding properties into porous gallium nitride structures investigated by prism coupling technique

Bandar Alshehri, Seung-Min Lee, Jin-Ho Kang, Su-Hyun Gong, Sang-Wan Ryu, Yong-Hoon Cho, El Hadj Dogheche

In order to modulate the refractive index and the birefringence of Gallium Nitride (GaN), we have developed a chemical etching method to perform porous structures. The aim of this research is to demonstrate that optical properties of GaN can be tuned by controlling the pores density. GaN films are…

Applied Physics Letters, 2014, 105, 051906, 4 p. ⟨10.1063/1.4892528⟩. ⟨hal-01056953⟩

• Article dans une revue

Finite element analysis and experimental study of surface acoustic wave propagation through two-dimensional pillar-based surface phononic crystal

S. Yankin, Abdelkrim Talbi, Y. Du, Jean-Claude Gerbedoen, Vladimir Preobrazhensky, Philippe Pernod, Olivier Bou Matar

We study both theoretically and experimentally the interaction of surface elastic waves with 2D surface phononic crystal (PnC) on a piezoelectric substrate. A rigorous analysis based on 3D finite element method is conducted to calculate the band structure of the PnC and to analyze the transmission…

Journal of Applied Physics, 2014, 115, 244508, 7 p. ⟨10.1063/1.4885460⟩. ⟨hal-01018303⟩

• Article dans une revue

Effect of interface configurations on the dynamic scaling behavior of Pb(Zr0.53Ti0.47)O3 thin films

Kui Li, Nossikpendou Sama, Tao Li, Denis Remiens, Gang Du, Xianlin Dong, Genshui Wang

The ferroelectric hysteresis and the scaling relations of hysteresis area ⟨A⟩ against field amplitude E and frequency f in Pb(Zr0.53Ti0.47)O3 thin films using platinum and LaNiO3 (LNO) as both bottom and top electrodes were systematically investigated. Interestingly, it was found that the influence…

Applied Physics Letters, 2014, 104, 092904, 5 p. ⟨10.1063/1.4867506⟩. ⟨hal-00957814⟩

• Communication dans un congrès

Design and manufacturing of demonstrators based on ionic electroactive-polymer actuator

Mohamed Bentefrit, A. Fannir, Ali Maziz, Caroline Soyer, Cedric Plesse, Eric Cattan, Frederic Vidal

Journées Nationales du GDR " Micro/Nano Systèmes et Micro/Nano Fluidique ", 2014, Palaiseau, France. ⟨hal-01054996⟩

• Article dans une revue

High-gain Yagi-Uda antenna on cyclic olefin copolymer substrate for 300 GHz applications

Fabio Pavanello, Guillaume Ducournau, Emilien Peytavit, Sylvie Lepilliet, Jean-Francois Lampin

The cyclic olefin copolymer is a dielectric material with very attractive mechanical and electrical properties for millimeter- and submillimeter-based devices as recently demonstrated in a few applications. Here, we present the possibility of employing this material as a substrate for traveling-…

IEEE Antennas and Wireless Propagation Letters, 2014, 13, pp.939-942. ⟨10.1109/LAWP.2014.2322628⟩. ⟨hal-00996085⟩

• Article dans une revue

Ultralow-phase-noise oscillators based on BAW resonators

Mingdong Li, Seonho Seok, Nathalie Rolland, Paul-Alain Rolland, Hassan El Aabbaoui, Emeric de Foucauld, Pierre Vincent, Vincent Giordano

This paper presents two 2.1-GHz low-phase noise oscillators based on BAW resonators. Both a single-ended common base structure and a differential Colpitts structure have been implemented in a 0.25-μm BiCMOS process. The detailed design methods including the realization, optimization, and test are…

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2014, 61, pp.903-912. ⟨10.1109/TUFFC.2014.2986⟩. ⟨hal-00996831⟩

• Communication dans un congrès

Hypersonic band gap in an AlN-TiN bilayer phononic crystal slab

Stéphanie Hemon, Abdellatif Akjouj, Ali Soltani, Yan Pennec, Abdelkrim Talbi, Vincent Mortet, Bahram Djafari-Rouhani

Joint 25th Conference of the Condensed Matter Division of the European Physical Society, and 14èmes Journées de la Matière Condensée, CMD25-JMC14, 2014, Paris, France. ⟨hal-01015255⟩