Publicaciones

• Article dans une revue

Design of GaN based optical modulator with Mach-Zehnder interferometer structure

R.W. Purnamaningsih, N.R. Poespawati, Irma Saraswati, El Hadj Dogheche

In this work we have designed a Mach Zehnder interferometer (MZI) for electro optic modulator at telecommunication wavelength using GaN on Sapphire. The knowledge of GaN sample optical properties were also investigated, resulting refractive index for the GaN layers were found to be nTE=2.279±0.001...

WSEAS Transactions on Communications, 2014, 13, pp.229-233. ⟨hal-01044743⟩

• Article dans une revue

Bandwidth enhancement in disordered metamaterial absorbers

Jianping Hao, Eric Lheurette, Ludovic Burgnies, Etienne Okada, Didier Lippens

In this letter, we show numerically and experimentally that a positional disorder of a collection of absorbing electromagnetic wave resonators operating in the long wavelength regime dramatically enhances the absorption bandwidth. The demonstration is performed by using single-size ring-shaped thin...

Applied Physics Letters, 2014, 105, 081102, 5 p. ⟨10.1063/1.4894181⟩. ⟨hal-01058509⟩

• Communication dans un congrès

Experimental demonstration of anomalous nonreciprocal optical response of 1D periodic magnetoplasmonic nanostructures

L. Halagacka, Mathias Vanwolleghem, Francois Vaurette, Jamal Ben Youssef, Philippe Gogol, N. Yam, K. Postava, B. Dagens, J. Pistora

In this paper we analyze the optical and transversal magnetooptical (MO) response of magnetoplasmonic (MP) nanostructures. The MP structure is a 1D periodic gold grating fabricated by lift-off technique on the MO dielectric substrate (Bi-substituted yttrium iron garnet BixY3−xFe5O12). Following our...

SPIE Photonics West, OPTO 2014, Conference 8988 - Integrated Optics : Devices, Materials, and Technologies XVIII, 2014, San Francisco, CA, United States. 89880E, 6 p., ⟨10.1117/12.2039450⟩. ⟨hal-00962382⟩

• Communication dans un congrès

Back-gated microwave field-effect transistors based on transferred CVD-grown graphene

Wei Wei, Mohamed Moez Belhaj, Geetanjali Deokar, D. Mele, Emiliano Pallecchi, Emmanuelle Pichonat, Dominique Vignaud, Henri Happy

Graphene based transistors have drawn growing interest from both industries and Laboratories [1-3]. In this work, we present both fabrication process and characterization of graphene field-effect transistors. Large scale monolayer graphene was grown by chemical vapor deposition (CVD) on Cu foils...

4th Graphene Conference, Graphene 2014, May 2014, Toulouse, France. 2 p. ⟨hal-00962381⟩

• Communication dans un congrès

Surface acoustic wave bandgaps for conical pillars on a piezoelectric substrate

Abdelali Mrabti, Mourad Oudich, Abdellatif Akjouj, Yan Pennec, Bahram Djafari-Rouhani, Abdelkrim Talbi, Jérémy Streque, Yu Du, Ali Soltani, Philippe Pernod

We report theoretically on the band structure of a square lattice phononic crystal made up of nickel (Ni) conical pillars deposited on the surface of a semi-infinite LiNbO3 substrate. Calculations have been performed with a 3D finite element method taking into account material anisotropy and...

European Materials Research Society Spring Meeting, E-MRS Spring 2014, Symposium D - Phonons and fluctuations in low dimensional structures, 2014, Lille, France. ⟨hal-00962392⟩

• Article dans une revue

Wave propagation in layered piezoelectric rectangular bar : an extended orthogonal polynomial approach

J.G. Yu, C. Zhang, Jean-Etienne Lefebvre

Wave propagation in multilayered piezoelectric structures has received much attention in past forty years. But the research objects of previous research works are only for semi-infinite structures and one-dimensional structures, i.e., structures with a finite dimension in only one direction, such...

Ultrasonics, 2014, 54, pp.1677-1684. ⟨10.1016/j.ultras.2014.02.023⟩. ⟨hal-01000007⟩

• Autre publication scientifique

Advances in Historical Studies [Editor in Chief 4/2]

Raffaele Pisano

2014. ⟨hal-04517910⟩

• Article dans une revue

Noise performance of frequency modulation Kelvin force microscopy

Heinrich Diesinger, D. Deresmes, Thierry Melin

Noise performance of a phase-locked loop (PLL) based frequency modulation Kelvin force microscope (FM-KFM) is assessed. Noise propagation is modeled step by step throughout the setup using both exact closed loop noise gains and an approximation known as "noise gain" from operational...

Beilstein Journal of Nanotechnology, 2014, 5, pp.1-18. ⟨10.3762/bjnano.5.1⟩. ⟨hal-00950258⟩

• Communication dans un congrès

High polarization high breakdown voltage AlN/GaN-on-silicon transistors

Nicolas Herbecq, Isabelle Roch-Jeune, F Medjdoub

We have developed a back-side process on AlN/GaN-on-Si DHFETs in order to drastically enhance their electrical performances. With a buffer thickness of 1.8 μm, the Si substrate has been locally etched up to the buffer layers between the drain and the gate. After local silicon removal, the three-...

38th Workshop on Compound Semiconductor Devices and Integrated Circuits in Europe, WOCSDICE 2014, 2014, Delphi, Greece. 2 p. ⟨hal-01006455⟩

• Communication dans un congrès

Fabrication of magnetoelastic Bragg reflectors for surface acoustic wave applications and investigation of its tuning with constant magnetic field

Anastasia Pavlova, Sergey Yankin, Abdelkrim Talbi, Jean-Claude Gerbedoen

In this work studying of 1D periodic phononic crystal (PnC) fabrication for 2 GHz and 4 GHz on Ni was done experimentally and theoretically using finite element analysis (FEA). Change of crystal acoustic properties in applied magnetic field was evaluated theoretically.

17èmes Journées Nationales du Réseau Doctoral en Micro-Nanoélectronique, JNRDM 2014, 2014, Villeneuve d'Ascq, France. 3 p. ⟨hal-01020269⟩