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Affichage de 3081 à 3090 sur 16431

  • Article dans une revue

75 nm gate length PHEMT with f max = 800 GHz using asymmetric gate recess: RF and noise investigation

M. Samnouni, Nicolas Wichmann, X. Wallart, Christophe Coinon, Sylvie Lepilliet, S. Bollaert

We report a high maximum frequency of oscillation (f max) and a current-gain cutoff frequency (f T) of 800 and 260 GHz, respectively, with pseudomorphic high-electron mobility transistor (PHEMT), using an InGaAs/InAs composite channel and an asymmetric gate recess. This result was achieved with…

IEEE Transactions on Electron Devices, 2021, 68 (9), pp.4289-4295. ⟨10.1109/TED.2021.3098255⟩. ⟨hal-03419728⟩

  • Article dans une revue

Photopatternable hydroxide ion electrolyte for solid-state micro-supercapacitors

Christopher Choi, Kevin Robert, Grace Whang, Pascal Roussel, Christophe Lethien, Bruce Dunn

Electrochemical energy storage (EES) devices that provide high power and energy for micropower systems are considered to be essential for developing micro/nano electronics such as nanorobotics, environmental sensors, and connected smart electronics. One promising research direction in this field…

Joule, 2021, 5 (9), pp.2466-2478. ⟨10.1016/j.joule.2021.07.003⟩. ⟨hal-03501780⟩

  • Article dans une revue

Blind Adaptive Low-Complexity Time-Domain Equalizer for 100-Gb/s Direct-Detection Optical OFDM Systems Over Long-Reach SSMF

Asmaa Benieddi, Sid Ahmed Elahmar, Iyad Dayoub, Shyqyri Haxha

In this article, we report a low-complexity blind adaptive time-domain equalizer (TEQ) to reduce the cyclic prefix (CP) length for 100-Gb/s direct-detection optical orthogonal frequency-division multiplexing (OFDM) system combined with wavelength-division multiplexing system over 400-km standard…

IEEE Systems Journal, 2021, 15 (3), pp.3841-3847. ⟨10.1109/JSYST.2020.2996384⟩. ⟨hal-03382867⟩

  • Article dans une revue

A barium titanate‐on‐oxide insulator optoelectronics platform

Yu Cao, Siew Li Tan, Eric Jun Hao Cheung, Shawn Yohanes Siew, Changjian Li, Yan Liu, Chi Sin Tang, Manohar Lal, Guanyu Chen, Karim Dogheche, Ping Yang, Steven Pennycook, Andrew Thye Shen Wee, Soojin Chua, El Hadj Dogheche, Thirumalai Venkatesan, Aaron Danner

Electro-optic modulators are among the most important building blocks in optical communication networks. Lithium niobate, for example, has traditionally been widely used to fabricate high-speed optical modulators due to its large Pockels effect. Another material, barium titanate, nominally has a 50…

Advanced Materials, 2021, 33 (37), pp.2101128. ⟨10.1002/adma.202101128⟩. ⟨hal-03501430⟩

  • Article dans une revue

Fano resonance between stokes and anti-stokes Brillouin scattering

Kwanto Lai, Daniel Finkelstein-Shapiro, Sebastian Lehmann, Arnaud Devos, Pierre-Adrien Mante

In recent years, the manipulation of Fano resonances in the time domain has unlocked deep insights into a broad spectrum of systems’ coherent dynamics. Here, inelastic scattering of light with coherent acoustic phonons is harnessed to achieve complex Fano resonances. The sudden change of phonon…

Physical Review Research, 2021, 3 (3), pp.L032010. ⟨10.1103/physrevresearch.3.l032010⟩. ⟨hal-03282287⟩

  • Article dans une revue

Stochastic Resource Optimization of Random Access for Transmitters with Correlated Activation

Ce Zheng, Malcolm Egan, Laurent Clavier, Anders E Kalør, Petar Popovski

For a range of scenarios arising in sensor networks, control and edge computing, communication is event-triggered; that is, in response to the environment of the communicating devices. A key feature of device activity in this setting is correlation, which is particularly relevant for sensing of…

IEEE Communications Letters, 2021, 25 (9), pp.3055-3059. ⟨10.1109/LCOMM.2021.3090110⟩. ⟨hal-03212813⟩

  • Article dans une revue

Introduction to IDTC special issue: Joule's bicentenary history of science, foundations and nature of science

Raffaele Pisano, Paulo Mauricio, Philippe Vincent

James Prescott Joule's (1818-1889) bicentenary took place in 2018 and commemorated by the IDTC with a Symposium-'James Joule's Bicentenary: Scientific and Pedagogical Issues Concerning Energy Conservation'-at the European Society for the History of Science (ESHS and BSHS), 14th-…

Foundations of Science, 2021, 26, pp.531-551. ⟨10.1007/s10699-020-09680-2⟩. ⟨hal-03322495⟩

  • Article dans une revue

Microencapsulation of benzalkonium chloride enhanced its antibacterial and antibiofilm activity against Listeria monocytogenes and Escherichia coli

Simon Khelissa, Adem Gharsallaoui, Alexandre Fadel, Alexandre Barras, Charafeddine Jama, Fouzia Jbilou, Nour-Eddine Chihib

Aims: In this study, benzalkonium chloride (BAC) microcapsules were developed for surface disinfection purpose and were evaluated against Listeria monocytogenes and Escherichia coli biofilms.Methods and Results: Microcapsules were prepared with two different strategies: uncomplexed BAC‐…

Journal of Applied Microbiology, 2021, 131 (3), pp 1136-1146. ⟨10.1111/jam.15010⟩. ⟨hal-03137614⟩

  • Article dans une revue

Composition control of lead‐free piezoelectric BNT thin ceramic films deposited by ex situ sputtering

Ahmad Hamieh, Freddy Ponchel, Denis Remiens

(Bi0.5Na0.5)TiO3 thin film growth by ex situ sputtering has been investigated and reported in this paper. An original approach, based on the growth process, was used in order to precisely control the film composition, which has never been reported in BNT growth. The bismuth content in the films and…

Journal of the American Ceramic Society, 2021, 104 (9), pp.4381-4388. ⟨10.1111/jace.17890⟩. ⟨hal-03310446⟩

  • Article dans une revue

A Comparative Study of Asynchronous and Synchronous OCDMA Systems

Hichem Mrabet, Abdelhamid Cherifi, Thiago Raddo, Iyad Dayoub, Shyqyri Haxha

This article presents a detailed survey on both asynchronous and synchronous Optical Code-Division Multiple-Access (OCDMA) systems based on 1-D, 2-D, and 3-D codes, distinctively. Accordingly, different coding schemes along with their multiplexing capacity, correlation features, advantages and…

IEEE Systems Journal, 2021, 15 (3), pp.3642-3653. ⟨10.1109/JSYST.2020.2991678⟩. ⟨hal-03382869⟩