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Affichage de 3421 à 3430 sur 16261

  • Communication dans un congrès

Experimental and theoretical study of group delay times and density of states in one-dimensional photonic circuit

S. Khattou, M. Amrani, A. Mouadili, E.H. El Boudouti, Abdelkrim Talbi, Abdellatif Akjouj, Bahram Djafari-Rouhani

We present a comparative study of density of states (DOS) and group delay times for a one-dimensional (1D) coaxial photonic crystal made of N cells attached horizontally along a waveguide. Using the interface response theory of continuous media, we derive exact analytical expressions relating the...

2nd International Conference on Electronic Engineering and Renewable Energy, ICEERE 2020, Apr 2020, Saidia, Morocco. pp.249-256, ⟨10.1007/978-981-15-6259-4_25⟩. ⟨hal-03362271⟩

  • Article dans une revue

Three-dimensional trapping and dynamic axial manipulation with frequency-tuned spiraling acoustical tweezers: a theoretical study

Zhixiong Gong, Michael Baudoin

Holographic acoustical tweezers based on Archimedes-Fermat spiraling interdigitated transducers (SIDTs) are a versatile tool for the selective manipulation of microparticles [Baudoin et al., Sci. Adv. 5, eaav1967 (2019)] and cells [Baudoin et al., Nat. Commun., 11, 4244 (2020)] in a standard...

Physical Review Applied, 2021, 16 (2), pp.024034. ⟨10.1103/PhysRevApplied.16.024034⟩. ⟨hal-03329983⟩

  • Article dans une revue

Low impedance and highly transparent microelectrode arrays (MEA) for in vitro neuron electrical activity probing

Anna Susloparova, Sophie Halliez, Séverine Begard, Morvane Colin, Luc Buée, Sébastien Pecqueur, F. Alibart, V. Thomy, S. Arscott, Emiliano Pallecchi, Yannick Coffinier

In this study, we present the microfabrication and characterization of a transparent microelectrode array (MEA) system based on PEDOT:PSS for electrophysiology. The influence of the PEDOT:PSS electrode dimensions on the impedance was investigated and the stability over time under physiological...

Sensors and Actuators B: Chemical, 2021, 327, pp.128895. ⟨10.1016/j.snb.2020.128895⟩. ⟨hal-03094481⟩

  • Article dans une revue

Bias-dependent intrinsic rf thermal noise modeling and characterization of single-layer graphene fets

N. Mavredakis, A. Pacheco-Sanchez, P. Sakalas, W. Wei, Emiliano Pallecchi, Henri Happy, D. Jimenez

In this article, the bias dependence of intrinsic channel thermal noise of single-layer (SL) graphene field-effect transistors (GFETs) is thoroughly investigated by experimental observations and compact modeling. The findings indicate an increase of the specific noise as drain current increases,...

IEEE Transactions on Microwave Theory and Techniques, 2021, 69 (11), pp.4639-4646. ⟨10.1109/TMTT.2021.3105672⟩. ⟨hal-03542154⟩

  • Chapitre d'ouvrage

4 - Open loop examples

Housni Al Wahsh, L. Dobrzynski, Abdellatif Akjouj, El Houssaine El Boudouti

The simplest general robust zero is the middle of an open loop. When the middles of several free-end open loops of the same length are superposed, their antisymmetric eigenfunctions remain unperturbed and the final network has several degenerate states. The next three examples take into account...

Photonics, Part one : photonic paths, Elsevier, pp.33-49, 2021, 978-0-12-819388-4. ⟨10.1016/B978-0-12-819388-4.00013-7⟩. ⟨hal-03350831⟩

  • Chapitre d'ouvrage

5 - Closed loop examples

Housni Al Wahsh, L. Dobrzynski, Abdellatif Akjouj, El Houssaine El Boudouti

The specific properties of closed loop eigenfunctions deserve to be better understood. This chapter underlines that responses in closed loops differ from the responses in open loops. Within the following simple examples, constructed on closed loop robust zeros, many path states are found.A robust...

Photonics, Part one : photonic paths, Elsevier, pp.51-97, 2021, 978-0-12-819388-4. ⟨10.1016/B978-0-12-819388-4.00014-9⟩. ⟨hal-03350839⟩

  • Chapitre d'ouvrage

6 - Closed loop and stubs

L. Dobrzynski, Housni Al Wahsh, Abdellatif Akjouj, Cécile Ghouila-Houri, Abdelkrim Talbi, Gaëtan Lévêque, El Houssaine El Boudouti

Closed loops with finite open loops attached to the robust zeros of one of their two twin states are the systems investigated in this chapter. Such attached finite loops are called stubs. For simplicity, here only the cases where all the stubs have the same length are considered. This length is...

Photonics, Part one: photonic paths, Elsevier, pp.99-131, 2021, 978-0-12-819388-4. ⟨10.1016/B978-0-12-819388-4.00015-0⟩. ⟨hal-03350849⟩

  • Communication dans un congrès

Wind tunnel integration of Micro-Magneto-Mechanical Systems (MMMS) microvalves for flow control experiments

Thomas Arnoult, Colin Leclercq, Cécile Ghouila-Houri, Aurélien Mazzamurro, Manon Benedito, Romain Viard, Quentin Gallas, Eric Garnier, Denis Sipp, Abdelkrim Talbi, Philippe Pernod

Flow control techniques can be defined as methods changing a flow natural dynamics. The control of a flow can be achieved with actuators affecting the flow momentum. Therefore, a MMMS microvalve was designed and characterized. The micro-actuators have then been integrated to a wind tunnel on the...

Symposium on Design, Test, Integration and Packaging of MEMS and MOEMS, DTIP 2021, Aug 2021, Paris, France. pp.01-03, ⟨10.1109/DTIP54218.2021.9568496⟩. ⟨hal-03587640⟩

  • Article dans une revue

MEMS High Temperature Gradient Sensor for Skin-Friction Measurements in Highly Turbulent Flows

Cécile Ghouila-Houri, Abdelkrim Talbi, Romain Viard, Quentin Gallas, Eric Garnier, Pascal Molton, Jerome Delva, Alain Merlen, Philippe Pernod

This paper presents and discusses the results obtained with a MEMS (Micro-Electro-Mechanical System) high temperature gradient sensor for time-averaged and fluctuating skin-friction measurements in highly turbulent flows. Designed as a robust wall-mounted suspended hot-wire structure, the micro-...

IEEE Sensors Journal, 2021, 21 (8), pp.9749-9755. ⟨10.1109/JSEN.2020.2991785⟩. ⟨hal-03229029⟩

  • Article dans une revue

A linearized analog microwave photonic link with an eliminated even-order distortions

Taimur Nazir Mirza, Shyqyri Haxha, Iyad Dayoub

An improved linearized analog microwave photonic link (AMPL) with significant multioctave bandwidth performance is experimentally presented. The proposed AMPL configuration is based on a double dual-parallel Mach–Zehnder modulator and a differential balanced photodetector (BPD). Explicitly, a...

IEEE Systems Journal, 2021, 15 (4), pp.4843 - 4851. ⟨10.1109/JSYST.2021.3051394⟩. ⟨hal-03383630⟩