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Switchable and active metasurfaces allow for the realization of beam steering, zoomable metalenses, or dynamic holography. To achieve this goal, one has to combine high-performance metasurfaces with switchable materials that exhibit high…

The very significant growth of the wireless communication industry has spawned tremendous interest in the development of high performances radio frequencies (RF) components. Micro Electro Mechanical Systems (MEMS) are good candidates to…

Other Computer Science · Computer Science 2008-02-22 C. Durand , F. Casset , P. Ancey , F. Judong , A. Talbot , R. Quenouillere , D. Renaud , S. Borel , B. Florin , L. Buchaillot

In this article, we report, for the first time, broadband multifunctional metasurfaces with more than four distinct functionalities. The constituent meta-atoms combine two different phase change materials, $\mathrm{VO_2}$ and…

Off-state current leakage and switching delay has become the main challenge for continued complementary metal-oxide-semiconductor (CMOS) technology scaling. Previous work proposes a "see-saw" relay structure to mimic the operation of CMOS.…

Applied Physics · Physics 2020-07-17 Xilin Liu , Haodi Ouyang , Yidong Wang

In this study, we investigate the feasibility of designing reconfigurable transmitting metasurfaces through the use of Drude-like scatterers with purely electric response. Theoretical and numerical analyses are provided to demonstrate that…

A current-mode CMOS design is proposed for realizing receive mode multi-beams in the analog domain using a novel DFT approximation. High-bandwidth CMOS RF transistors are employed in low-voltage current mirrors to achieve bandwidths…

Information Theory · Computer Science 2016-11-17 V. Ariyarathna , S. Kulasekera , A. Madanayake , D. Suarez , R. J. Cintra , F. M. Bayer , L. Belostotski

An excitation method for MEMS devices with planar electrodes is described. The stationary part of the device (the stator) consists of three electrode arrays arranged in the 'ABCABC' order. 'A', 'B', and 'C' carry time-independent potentials…

Chaotic Dynamics · Physics 2013-04-04 Pavel Kornilovitch , Robert Walmsley

Electrostatic gates are of paramount importance for the physics of devices based on high-mobility two-dimensional electron gas (2DEG) since they allow depletion of electrons in selected areas. This field-effect gating enables the…

Mesoscale and Nanoscale Physics · Physics 2015-09-23 K. Bennaceur , B. A. Schmidt , S. Gaucher , D. Laroche , M. P. Lilly , J. L. Reno , K. W. West , L. N. Pfeiffer , G. Gervais

Dielectric elastomers are an emerging class of highly deformable electro-active materials employed for electromechanical transduction technology. For practical applications, the design of such transducers requires a model accounting for…

Soft Condensed Matter · Physics 2018-11-12 Eliana Bortot

A potential function is presented for describing a system of flexible H$_2$O molecules based on the single center multipole expansion (SCME) of the electrostatic interaction. The model, referred to as SCME/f, includes the variation of the…

Computational Physics · Physics 2022-06-10 Elvar Örn Jónsson , Soroush Rasti , Marta Galynska , Jörg Meyer , Hannes Jónsson

The active reflector is one of the three main innovations of the Five-hundred-meter Aperture Spherical radio Telescope (FAST). The deformation of such a huge spherically shaped reflector into different transient parabolic shapes is achieved…

Instrumentation and Methods for Astrophysics · Physics 2018-02-08 Hai-Yan Zhang , Ming-Chang Wu , You-Ling Yue , Heng-Qian Gan , Hao Hu , Shi-Jie Huang

Microelectromechanical systems (MEMS) technologies are developing rapidly with increasing study of the design, fabrication and commercialization of microscale systems and devices. Accurate mechanical properties are important for successful…

Other Computer Science · Computer Science 2007-11-29 Ming-Tzer Lin , Chi-Jia Tong , Chung-Hsun Chiang

Pentagonal PdSe2 is a promising candidate for layered electronic devices, owing to its high air-stability and anisotropic transport properties. Here, we investigate the performance of p-type FET based on PdSe$_2$ mono-layer using…

Mesoscale and Nanoscale Physics · Physics 2023-05-02 Keshari Nandan , Amit Agarwal , Somnath Bhowmick , Yogesh S. Chauhan

Strain-mediated magnetoelectric (ME) coupling in ferroelectric (FE) / ferromagnetic (FM) heterostructures offers a unique opportunity for both fundamental scientific research and low power multifunctional devices. Relaxor-ferroelectrics,…

Materials Science · Physics 2021-10-13 S. Lindemann , J. Irwin , G. -Y. Kim , B. Wang , K. Eom , J. J. Wang , J. M. Hu , L. Q. Chen , S. Y. Choi , C. B. Eom , M. S. Rzchowski

This paper concerns the experimental validation of some mathematical models previously developed by the authors, to predict the static behaviour of microelectrostatic actuators, basically free-clamped microbeams. This layout is currently…

Other Computer Science · Computer Science 2008-02-22 A. Ballestra , E. Brusa , M. G. Munteanu , A. Soma

Mani et al. have observed [1] zero-resistance states (ZRS) and energy gaps in a surprising setting: ultrahigh-mobility GaAs/AlGaAs heterostructures that contain a two dimensional electron Landau system (2DELS) exhibit vanishing diagonal…

Superconductivity · Physics 2007-05-23 J. C. Phillips

Realizing active metasurfaces with substantial tunability is important for many applications but remains challenging due to difficulties in dynamically tuning light-matter interactions at subwavelength scales. Here, we introduce reversible…

Advanced flexible electronics and soft robotics require the development and implementation of flexible functional materials. Magnetoelectric (ME) oxide materials can convert magnetic input into electric output and vice versa, making them…

Low power consumption in both static and dynamic modes of operation is a key requirement in modern, highly scaled nanoelectronics. Tunneling field-effect transistors (TFETs) that exploit direct band-to-band tunneling of charges and exhibit…

sEMG pattern recognition algorithms have been explored extensively in decoding movement intent, yet are known to be vulnerable to changing recording conditions, exhibiting significant drops in performance across subjects, and even across…

Machine Learning · Computer Science 2024-01-08 Joao Pereira , Dimitrios Chalatsis , Balint Hodossy , Dario Farina
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