Publications

Affichage de 1021 à 1030 sur 16055


  • ART

Al‐Rich AlGaN Channel High Electron Mobility Transistors on Silicon: A Relevant Approach for High Temperature Stability of Electron Mobility

Julien Bassaler, Jash Mehta, Idriss Abid, Leszek Konczewicz, Sandrine Juillaguet, Sylvie Contreras, Stéphanie Rennesson, Sebastian Tamariz, Maud Nemoz, Fabrice Semond, Julien Pernot, Farid Medjdoub, Yvon Cordier, Philippe Ferrandis

Ultrawide bandgap (UWBG) semiconductors offer new possibilities to develop power electronics. High voltage operation for the off‐state as well as high temperature stability of the devices in on‐state are required. More than AlGaN/GaN heterostructures, AlGaN/AlGaN heterostructures are promising…

Advanced Electronic Materials, 2024, 11 (1), pp.2400069. ⟨10.1002/aelm.202400069⟩. ⟨hal-04665123⟩

  • ART

Engineering the breaking of topological protection in valley photonic crystals enables to design chip level functions for THz 6G communications and beyond

Abdu Subahan Mohammed, Gaëtan Lévêque, Edouard Lebouvier, Yan Pennec, Marc Faucher, Alberto Amo, Pascal Szriftgiser, Guillaume Ducournau

Journal of Lightwave Technology, 2024, pp.1 - 13. ⟨10.1109/jlt.2024.3423659⟩. ⟨hal-04664538⟩

  • ART

Broadband high-contrast-grating-type waveplates for the terahertz range

Surya Revanth Ayyagari, Andreas K Klein, Simonas Indrišiūnas, Vytautas Janonis, Daniil Pashnev, Abdu Subahan Mohammed, Guillaume Ducournau, Andreas Stöhr, Irmantas Kašalynas

The high-contrast-grating waveplates utilizing high contrast between silicon and air refractive indexes were developed in order to perform as a quarter wave and a half wave plate in the selected THz frequency range. The waveplates possessed anti-reflective properties due to the specific inclination…

Optics Express, 2024, Optics Express, 32 (9), pp.15870-15881. ⟨10.1364/oe.521532⟩. ⟨hal-04569540⟩

  • COMM

Integrated twisted bilayer graphene photonic upconverter for D-Band wireless links

Alberto A. Montanaro, A. Boschi, Guillaume Ducournau, Vaidotas Mišeikis, S. Soresi, M.G.L. Frecassetti, P. Galli, Henri Happy, S. Pezzini, C. Coletti, Marco Romagnoli, V. Sorianello

We report a compact D-band graphene photonics-based upconverter at 140 GHz for next generation 6G networks. We show 10Gb/s QPSK and 4Gb/s 16QAM transmission exploiting ultra-broadband ( 180 GHz ) operation of CVD-grown large-angle twisted-bilayer-graphene.

Optical Fiber Communication Conference 2024, 2024, San Diego California, France. pp.Th3F.5, ⟨10.1364/OFC.2024.Th3F.5⟩. ⟨hal-04606529⟩