Publications

• Chapitre d'ouvrage

2 - Closed loop

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

A closed loop can be obtained by linear superposition of the two free ends of an open loop. Its main property is the double degeneracy of its states. The analytical expressions of its eigenvalues, eigenfunctions, and response function are presented. The case of two simultaneous identical measures…

Photonics, Part one: photonic paths, Elsevier, pp.15-19, 2021, 978-0-12-819388-4. ⟨10.1016/B978-0-12-819388-4.00011-3⟩. ⟨hal-03350752⟩

• Chapitre d'ouvrage

11 - Photonic Monomode Circuits: Comb Structures

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

Photon circuits are light conducting networks formed by joining several dielectric waveguide channels for the transmission of light. Their production utilizes the most advanced surface technologies and represents one of the most important challenges for the next decade. These circuits are usually…

Photonics, Part 2: Photonic Circuits, Elsevier, pp.219-285, 2021, 978-0-12-819388-4. ⟨10.1016/B978-0-12-819388-4.00021-6⟩. ⟨hal-03359900⟩

• Chapitre d'ouvrage

19 - Optical Waves in Finite Layered Photonic Crystals

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

We investigated the propagation of electromagnetic waves in a finite photonic crystal bounded by a substrate and vacuum, and separated from them by a buffer layer and a cap layer. In this realistic geometry, we show the existence of different kinds of localized and resonant modes whose behaviors…

Photonics, Part Three: Photonic Materials, Elsevier, pp.529-568, 2021, 978-0-12-819388-4. ⟨10.1016/B978-0-12-819388-4.00030-7⟩. ⟨hal-03360008⟩

• Chapitre d'ouvrage

13 - Fibonacci Loop Structures: Bandgaps, Power Law, Scaling Law, Confined and Surface Modes

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

We study theoretically and experimentally the existence and behavior of scaling law, power law, as well as confined and surface modes in one-dimensional (1D) quasiperiodic photonic bandgap structures. These structures are made of segments and loops arranged according to a Fibonacci sequence. We…

Photonics, Part 2: Photonic Circuits, Elsevier, pp.333-371, 2021, 978-0-12-819388-4. ⟨10.1016/B978-0-12-819388-4.00023-X⟩. ⟨hal-03359903⟩

• Chapitre d'ouvrage

9 - Electromagnetic Induced Transparency, Induced Absorption, and Fano Resonances in Photonic Circuits

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

In this chapter, a simple photonic device consisting of two dangling side resonators grafted at two sites (U-shape) or at the same site (cross-shape) along a waveguide is designed in order to obtain sharp resonant states inside the transmission gaps without introducing any defects in the structure…

Photonics, Part 2: Photonic Circuits, Elsevier, pp.155-191, 2021, 978-0-12-819388-4. ⟨10.1016/B978-0-12-819388-4.00019-8⟩. ⟨hal-03359904⟩

• Communication dans un congrès

Analysis of the Susceptibility of the LoRa Communication Protocol in the Railway Electromagnetic Environment

Virginie Deniau, Thomas Vantroys, Norbert Becuwe, Christophe Gransart, Artur Nogueira de Sao Jose, Alexandre Boé, Eric Pierre Simon, Olivier Vlamynck, Florent Valenti, Jonathan Villain, Quentin Rivette

In the context of the digital transformation of railway transportation systems, railway operators investigate the potentialities of the IoT (Internet of Things) in order to optimize the maintenance operations on the vehicles and the infrastructures. One of the interest is to use IoT communication…

URSI GASS 2021, XXXIV General Assembly and Scientific Symposium (GASS) of the International Union of Radio Science (URSI), Aug 2021, Rome, Italy. 4p. ⟨hal-03265936⟩

• Communication dans un congrès

Single-pole-double-throw RF switches based on monolayer MoS₂

Myungsoo Kim, Emiliano Pallecchi, Henri Happy, Deji Akinwande

Recently, low-power analog switches have been enjoying rapidly growing interest owing to their proliferation in mobile and reconfigurable communication and connectivity systems often with multiple-input-multiple-output architecture [1] , [2] . To develop this ideal switch, non-volatile switches…

• Article dans une revue

Heuristically accelerated reinforcement learning for channel assignment in wireless sensor networks

Mohamed Sahraoui, Azeddine Bilami, Abdelmalik Taleb-Ahmed

In wireless sensor networks (WSNs), multi-channel communication represents an attractive field due to its advantage in improving throughput and delivery rate. However, the major challenge that faces WSNs is the energy constraint. To overcome the channel assignment problem in an energy-efficient way…

International Journal of Sensor Networks, 2021, 37 (3), pp.159. ⟨10.1504/IJSNET.2021.118877⟩. ⟨hal-03501786⟩

• Article dans une revue

New barrier layer design for the fabrication of gallium nitride-metal-insulator-semiconductor-high electron mobility transistor normally-off transistor

Flavien Cozette, Bilal Hassan, Christophe Rodriguez, Eric Frayssinet, Rémi Comyn, François Lecourt, Nicolas Defrance, Nathalie Labat, François Boone, Ali Soltani, Abdelatif Jaouad, Yvon Cordier, Hassan Maher

This paper reports on the fabrication of an enhancement-mode AlGaN/GaN metal-insulator-semiconductor-high electron mobility transistor with a new barrier epi-layer design based on double Al 0.2 Ga 0.8 N barrier layers separated by a thin GaN layer. Normally-off transistors are achieved with good…

Semiconductor Science and Technology, 2021, 36 (3), pp.034002. ⟨10.1088/1361-6641/abd489⟩. ⟨hal-03341284⟩

• Article dans une revue

Preanalytical issues and cycle threshold values in SARS-CoV-2 real-time RT-PCR testing: should test results include these?

Ilka Engelmann, Enagnon Kazali Alidjinou, Judith Ogiez, Quentin Pagneux, Sana Miloudi, Ilyes Benhalima, Mahdi Ouafi, Famara Sané, Didier Hober, Alain Roussel, Christian Cambillau, David Devos, Rabah Boukherroub, Sabine Szunerits

Since the emergence of SARS-CoV-2 pandemic, clinical laboratories worldwide are overwhelmed with SARS-CoV-2 testing using the current gold standard: real-time reverse-transcription polymerase chain reaction (RT-PCR) assays. The large numbers of suspected cases led to shortages in numerous reagents…

ACS Omega, 2021, 6 (10), pp.6528-6536. ⟨10.1021/acsomega.1c00166⟩. ⟨hal-03196337⟩