Publications associées à Gallium nitride L3 photonic crystal cavities with an average quality factor of 16 900 in the near infrared

Ultrahigh-quality-factor micro- and nanomechanical resonators using dissipation dilution

Tobias Kippenberg, Alberto Beccari, Nils Johan Engelsen

Mechanical resonators are widely used in sensors, transducers and optomechanical systems, where mechanical dissipation sets the ultimate limit to performance. Over the past 15 years, the quality factors in strained mechanical resonators have increased by f ...

Berlin2024

Genetic Algorithms for the Discovery of Homogeneous Catalysts

Rubén Laplaza Solanas, Anne-Clémence Corminboeuf, Puck Elisabeth van Gerwen, Alexandre Alain Schöpfer, Simone Gallarati

In this account, we discuss the use of genetic algorithms in the inverse design process of homogeneous catalysts for chemical transformations. We describe the main components of evolutionary experiments, specifically the nature of the fitness function to o ...

2023

A combined genetic algorithm and active learning approach to build and test surrogate models in Process Systems Engineering

François Maréchal, Julia Granacher

In Process Systems Engineering, computationally-demanding models are frequent and plentiful. Handling such complexity in an optimization framework in a fast and reliable way is essential, not only for generating meaningful solutions but also for providing ...

Oxford2023

NbN films with high kinetic inductance for high-quality compact superconducting resonators

Edoardo Charbon, Pasquale Scarlino, Fabrizio Minganti, Simone Frasca, Marco Scigliuzzo, Vincent Jean Yves Jouanny, Fabian Oppliger, Roberto Musio

Niobium nitride (NbN) is a particularly promising material for quantum technology applications, as it shows the degree of reproducibility necessary for large-scale superconducting circuits. We demonstrate that resonators based on NbN thin films present a o ...

2023

Optimization of Edge Profile for Improved Anti-Resonance Quality Factor in Lithium Niobate SH0 Resonators

Luis Guillermo Villanueva Torrijo, Silvan Stettler

Thin-film lithium niobate (LNO) has been identified as a promising material platform for enabling high electromechanical coupling and low-loss piezoelectric resonators for filtering applications. In this work, the design and fabrication of fundamental shea ...

IEEE2022

Wind farm layout and unconstrained hub height optimization using genetic algorithms applied to different power densities

Fernando Porté Agel, Nicolas Otto Kirchner Bossi

LES and wind tunnel studies have shown significant benefit when allowing turbines (T) in a wind farm to adopt different heights. This work presents two new genetic algorithms (GA) that perform wind farm layout optimization (WFLO) involving continuous and t ...

2022

Free standing and solidly mounted Lamb wave resonators based on Al0.85Sc0.15N thin film

Paul Muralt, Mohammad Fazel Parsapour Kolour, Vladimir Pashchenko

Lamb wave microresonators with wavelengths of 5-8m, vibrating in the S0 mode, and having 75 electrode pairs were fabricated and characterized. The results were compared to theoretical predictions obtained by finite element simulation. The active material w ...

AMER INST PHYSICS2019

Fabrication Of Lithium Niobate Bulk Acoustic Resonator For 5G Filters

Luis Guillermo Villanueva Torrijo, Annalisa De Pastina, Soumya Yandrapalli, Victor Plessky, Muhammad Faizan

This work presents the fabrication of a MEMS resonant device which addresses the need for high quality and miniaturized RF filters in the 3-6 GHz range for 5th generation (5G) mobile networks. The 4-mask fabrication process is based on the definition of in ...

IEEE2019

A genetic algorithm based design and experimental characterization of a highly thermostable metalloprotein

Ursula Röthlisberger, Rudolf Hovius, Marta Andreia Da Silva Perez, Esra Bozkurt, Nicholas John Browning

The development of thermostable and solvent-tolerant metalloproteins is a long-sought goal for many applica- tions in synthetic biology and biotechnology. In this work, we were able to engineer a highly thermo- and organic solvent- stable metallo variant o ...

2018

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Gallium nitride L3 photonic crystal cavities with an average quality factor of 16 900 in the near infrared

Ultrahigh-quality-factor micro- and nanomechanical resonators using dissipation dilution

Genetic Algorithms for the Discovery of Homogeneous Catalysts

A combined genetic algorithm and active learning approach to build and test surrogate models in Process Systems Engineering

NbN films with high kinetic inductance for high-quality compact superconducting resonators

Optimization of Edge Profile for Improved Anti-Resonance Quality Factor in Lithium Niobate SH0 Resonators

Wind farm layout and unconstrained hub height optimization using genetic algorithms applied to different power densities

Free standing and solidly mounted Lamb wave resonators based on Al0.85Sc0.15N thin film

Fabrication Of Lithium Niobate Bulk Acoustic Resonator For 5G Filters

A genetic algorithm based design and experimental characterization of a highly thermostable metalloprotein

Piezoelectric Nano-Balance for RNA Detection

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Chattez avec Graph Search

Ultrahigh-quality-factor micro- and nanomechanical resonators using dissipation dilution

Genetic Algorithms for the Discovery of Homogeneous Catalysts

A combined genetic algorithm and active learning approach to build and test surrogate models in Process Systems Engineering

NbN films with high kinetic inductance for high-quality compact superconducting resonators

Wind farm layout and unconstrained hub height optimization using genetic algorithms applied to different power densities

A genetic algorithm based design and experimental characterization of a highly thermostable metalloprotein

Optimization of Edge Profile for Improved Anti-Resonance Quality Factor in Lithium Niobate SH0 Resonators

Fabrication Of Lithium Niobate Bulk Acoustic Resonator For 5G Filters

Piezoelectric Nano-Balance for RNA Detection

Free standing and solidly mounted Lamb wave resonators based on Al0.85Sc0.15N thin film