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. 2 p. ⟨hal-01015314⟩

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⟩

Autre publication scientifique

Étude théorique et expérimentale de systèmes à onde de surface dans des structures multicouches piézomagnétiques pour des applications en contrôle santé intégré de MEMS par imagerie acoustique non linéaire

Huan Zhou

2014. ⟨hal-00975212⟩

Article dans une revue

Fabrication of superhydrophobic and highly oleophobic silicon-based surfaces via electroless etching method

Thi Phuong Nhung Nguyen, Renaud Dufour, Vincent Thomy, Vincent Senez, Rabah Boukherroub, Yannick Coffinier

This study reports on a simple method for the preparation of superhydrophobic and highly oleophobic nanostructured silicon surfaces. The technique relies on metal-assisted electroless etching of silicon in sodium tetrafluoroborate (NaBF4) aqueous solution. Then, silver particles were deposited on…

Applied Surface Science, 2014, 295, pp.38-43. ⟨10.1016/j.apsusc.2013.12.166⟩. ⟨hal-00946706⟩

Article dans une revue

On the origin of increased sensitivity and mass resolution using silicon masks in MALDI

Laurent Diologent, Julien Franck, Maxence Wisztorski, A. Treizebre, Cristian Focsa, Isabelle Fournier, Michael Ziskind

Since its development, MALDI has proved its performance in the analysis of intact biomolecules up to high molecular weights, regardless of their polarity. Sensitivity of MALDI instruments is a key point for breaking the limits of observing biomolecules of lower abundances. Instrumentation is one…

Analytical Chemistry, 2014, 86, pp.1404-1413. ⟨10.1021/ac401329r⟩. ⟨hal-00946711⟩

Article dans une revue

High reference impedance reflectometer for nonresonant matching of near-field microwave microscope tip probe

D. Glay, A. El Fellahi, T. Lasri

In this letter, we present a nonresonant high impedance reflectometer integrating a tip probe dedicated to near-field microwave microscopy. A 1-kohms reflectometer is fabricated by using lumped elements to validate the approach proposed to solve the problem of impedance mismatch between the probe…

Microwave and Optical Technology Letters, 2014, 56, pp.64-69. ⟨10.1002/mop.28018⟩. ⟨hal-00939056⟩

Communication dans un congrès

A fast and functional technique for the noise figure measurement of differential amplifiers

Yogadissen Andee, Jérôme Prouvée, François Graux, Francois Danneville

This paper presents an original technique to measure the noise figure of differential amplifiers with a four-port network analyzer. The approach is fast and simple as the S-parameters and the output noise powers are measured directly with the analyzer. There is no need of hybrid couplers or baluns…

10th Conference on PhD Research in Microelectronics and Electronics, PRIME 2014, 2014, Grenoble, France. 4 p., ⟨10.1109/PRIME.2014.6872691⟩. ⟨hal-01056957⟩