Publicaciones

Affichage de 3111 à 3120 sur 16058

COUV

18 - Optical Tamm States in Semiinfinite Layered Photonic Crystals

Abdellatif Akjouj, El Houssaine El Boudouti, L. Dobrzynski, Bahram Djafari-Rouhani, Gaëtan Lévêque

We investigate localized and resonant optical waves associated with a semiinfinite one-dimensional photonic crystal constructed by two different layers (1 and 2) and terminated with a cap layer. In this chapter, we present an analytic determination of the response function (Green's function)...

Photonics, Part Three: Photonic Materials, Elsevier, pp.489-527, 2021, 978-0-12-819388-4. ⟨10.1016/B978-0-12-819388-4.00029-0⟩. ⟨hal-03360006⟩

COUV

23 - Multilayered Structures Based One Dimensional Photonic Crystals for MEMS Applications

Cécile Ghouila-Houri, Abdelkrim Talbi, Abdellatif Akjouj, El Houssaine El Boudouti, Bahram Djafari-Rouhani, L. Dobrzynski

This chapter presents and discusses the modeling of multilayered structures based 1D photonic crystals for micro-electro-mechanical systems (MEMS) applications. We particularly report in this chapter a design for realizing a 1D photonic crystal cavity based on highly flexible thin elastomer that...

Photonics, Part Three: Photonic Materials, Elsevier, pp.657-675, 2021, 978-0-12-819388-4. ⟨10.1016/B978-0-12-819388-4.00034-4⟩. ⟨hal-03360017⟩

ART

Vertical Engineering for Large Brillouin Gain in Unreleased Silicon-Based Waveguides

L. Mercadé, A.V. Korovin, Yan Pennec, J. Ahopelto, Bahram Djafari-Rouhani, A. Martínez

Strong acousto-optic interaction in high-index waveguides and cavities generally requires the releasing of the high-index core to avoid mechanical leakage into the underlying low-index substrate. This complicates fabrication, limits thermalization, reduces the mechanical robustness, and hinders...

Physical Review Applied, 2021, 15 (3), pp.034021. ⟨10.1103/PhysRevApplied.15.034021⟩. ⟨hal-03542158⟩

ART

Electronic-components less fully textile multiple resonant combiners for body-centric near field communication

Baptiste Garnier, Philippe Mariage, François Rault, Cédric Cochrane, Vladan Koncar

Smart and e-textiles have nowadays an important increasing place in the garment industry. The rise of embedded telecommunications, especially smartphones in our pocket, enables us to provide a power source and a wireless link for smart textiles. The main issue is to develop garments able to receive...

Scientific Reports, 2021, 11 (1), pp.2159. ⟨10.1038/s41598-021-81246-z⟩. ⟨hal-03121430⟩

ART

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⟩

ART

DNA aptamers block the receptor binding domain at the spike protein of SARS-CoV-2

Fabrizio Cleri, Marc Lensink, Ralf Blossey

DNA aptamers are versatile molecular species obtained by the folding of short single-stranded nucleotide sequences, with highly specific recognition capabilities against proteins. Here we test the ability of DNA aptamers to interact with the spike (S-)protein of the SARS-CoV-2 viral capsid. The S-...

Frontiers in Molecular Biosciences, 2021, 8, pp.713003. ⟨10.3389/fmolb.2021.713003⟩. ⟨hal-03348018⟩

COMM

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⟩

COMM

Event-Driven Continuous-Time Feature Extraction for Ultra Low-Power Audio Keyword Spotting

S. Mourrane, Benoit Larras, A. Cathelin, Antoine Frappé

In the context of autonomous keyword spotting and sound detection, this paper proposes a low power feature extraction unit generating spectrograms that represent a unique signature allowing the classification of audio signals. This system is composed of a continuous-Time digital signal processing...

3rd IEEE International Conference on Artificial Intelligence Circuits and Systems, AICAS 2021, Jun 2021, Washington DC, DC, United States. pp.9458425, ⟨10.1109/AICAS51828.2021.9458425⟩. ⟨hal-03362267⟩

COMM

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⟩

COUV

21 - Layered Photonic Crystals with Left-Handed Materials

Abdellatif Akjouj, El Houssaine El Boudouti, L. Dobrzynski, Bahram Djafari-Rouhani

We theoretically investigate the photonic band structure of layered photonic crystals composed of alternating layers of right- and left-handed materials (RHMs and LHMs). The dispersion curves are mainly studied by assuming that the dielectric permittivity and magnetic permeability are constant in...

Photonics, Part Three: Photonic Materials, Elsevier, pp.587-621, 2021, 978-0-12-819388-4. ⟨10.1016/B978-0-12-819388-4.00032-0⟩. ⟨hal-03360012⟩