Publications associées à Unveiling Temperature-Dependent Scattering Mechanisms in Semiconductor Nanowires Using Optical-Pump Terahertz-Probe Spectroscopy

Publications associées (21)

Graphene-Templated Achiral Hybrid Perovskite for Circularly Polarized Light Sensing

Michael Graetzel, Anurag Krishna, Georgios Kakavelakis

This study points out the importance of the templating effect in hybrid organic-inorganic perovskite semiconductors grown on graphene. By combining two achiral materials, we report the formation of a chiral composite heterostructure with electronic band sp ...

2024

Measurement of the Diffusion and Partition Coefficients of 6-Methyl-5-hepten-2-one in Clothing

Meixia Zhang

Deep understanding of the chemical reaction and physical transport characteristics of 6-methyl-5-hepten-2-one (6-MHO) in different phases (e.g., skin, clothing) is important for modeling the indoor squalene/ozone reaction. In this study, we make the first ...

2023

Production of carbon nanomaterials and syngas from biogas reforming and decomposition on one-pot mesoporous nickel alumina catalysts

Muhammad Awais Naeem

Biogas, a renewable energy source, is primarily composed of CH4 and CO2. It is a promising alternative to fossil fuels and can be used directly for electricity production as well as heat generation via combustion. Concerns about climate change and a greate ...

2023

Broadband Mechanically Tunable Metasurface Reflectivity Modulator in the Visible Spectrum

Olivier Martin, Luis Guillermo Villanueva Torrijo, Niels Quack, Andrei Kiselev, Dorian Giraud Herle

Reflectivity modulation is a critical feature for applicationsin telecommunications, 3D imaging and printing, advanced laser machining,or portable displays. Tunable metasurfaces have recently emerged asa promising implementation for miniaturized and high-p ...

AMER CHEMICAL SOC2023

Machine Learning for Optical Motion Capture-Driven Musculoskeletal Modelling from Inertial Motion Capture Data

Rahul Sharma

Marker-based Optical Motion Capture (OMC) systems and associated musculoskeletal (MSK) modelling predictions offer non-invasively obtainable insights into muscle and joint loading at an in vivo level, aiding clinical decision-making. However, an OMC system ...

MDPI2023

Heterogeneous Overhauser-DNP on H-1 dominated by scalar coupling in aqueous solution

Jean-Philippe Ansermet, Christophe Roussel, Jonas Milani, Felipe Andres Saenz Padilla

The Overhauser Dynamic Nuclear Polarization (O-DNP) of H-1 nuclei usually involves a dipolar coupling with the polarizing agent, whereas scalar coupling via hyperfine interactions are more common with C-13 nuclei. Here, we show a scalar-coupling dominated ...

WILEY2022

Precision Surface Microtopography Regulates Cell Fate Via Changes To Actomyosin Contractility And Nuclear Architecture

Jürgen Brugger

MARY ANN LIEBERT, INC2022

Lock-in Raman difference spectroscopy

Christophe Moser, Damien Claude-Marie Loterie, Chiara Bonati, Rémy Jean Daniel Dornier, Victoria Alexandrine Julia Suzanne Marthe Fay

Shifted Excitation Raman Difference Spectroscopy (SERDS) is a non-destructive chemical analysis method capable of removing the fluorescence background and other disturbances from the Raman spectrum, thanks to the independence of the fluorescence with respe ...

Optica Publishing Group2022

Emergence of active turbulence in microswimmer suspensions due to active hydrodynamic stress and volume exclusion

Kai Qi

Microswimmers are ubiquitous in nature and present highly-dynamic collective motion. This study presents computational simulations of spheroidal model-microswimmers confined between two walls, revealing two collective dynamic states, giant motile clusters ...

2022

Materials for a broadband microwave superconducting single photon detector

Evgenii Glushkov

In this work, we develop and study superconducting materials for a broadband microwave single-photon detector for wide-range applications in superconducting quantum devices. Ideal materials of this type should have a superconducting gap of the order of 10 ...

IOP Publishing Ltd2022

On the uniqueness of solutions for the basis pursuit in the continuum

Julien René Fageot, Thomas Jean Debarre

This paper studies the continuous-domain inverse problem of recovering Radon measures on the one-dimensional torus from low-frequency Fourier coefficients, where K (c) is the cutoff frequency. Our approach consists in minimizing the total-variation norm am ...

2022

Optimized Detection of Hypoglycemic Glucose Ranges in Human Serum by Raman Spectroscopy with 532 nm Laser Excitation

Christian Enz, Sandro Carrara, Assim Boukhayma, Ata Jedari Golparvar

Raman scattering-based biomedical detection has usually been proposed with near-infrared laser sources. However, a low-cost CMOS imager's quantum efficiency is optimum around green wavelength, and their sensitivity substantially decreases in near-infrared ...

SCITEPRESS2021

Turbine mode start-up simulation of a variable speed Francis pump-turbine prototype - Part II: 3-D unsteady CFD and FEM

Drazen Dujic, François Avellan

The Z'Mutt pumping station, part of the Grande Dixence hydroelectric scheme, is one of the demonstrators of the XFLEX HYDRO project. A 5 MW reversible pump-turbine prototype equipped with a full-size frequency converter (FSFC) is used to investigate dynami ...

IOP Publishing2021

Comparison of Wide-Band-Gap Technologies for Soft-Switching Losses at High Frequencies (vol 35, pg 12595, 2020)

Elison de Nazareth Matioli, Armin Jafari, Mohammad Samizadeh Nikooytabalvandani, Palliyage Srilak Nirmana Perera, Reza Soleiman Zadeh Ardebili, Halil Kerim Yildirim

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2021

A Self-Powered and Battery-Free Vibrational Energy to Time Converter for Wireless Vibration Monitoring

Catherine Dehollain

Wireless sensor nodes (WSNs) are the fundamental part of an Internet of Things (IoT) system for detecting and transmitting data to a master node for processing. Several research studies reveal that one of the disadvantages of conventional, battery-powered ...

MDPI2021

The Imprint of Primary Production on High-Frequency Profiles of Lake Optical Properties

Alfred Johny Wüest, Camille Roland Marie Minaudo, Sébastien Manuel Lavanchy

Water inherent optical properties (IOPs) contain integrative information on the optical constituents of surface waters. In lakes, IOP measurements have not been traditionally collected. This study describes how high-frequency IOP profiles can be used to do ...

AMER CHEMICAL SOC2021

Synergistic material and process development: Application of a metal-organic framework, Cu-TDPAT, in single-cycle hydrogen purification and CO2 capture from synthesis gas

Wendy Lee Queen, Mehrdad Asgari

We employ a synergistic material and process development strategy to improve the performance of a single-cycle vacuum pressure swing adsorption (VPSA) process for the hydrogen purification and the CO2 separation from reforming-based hydrogen synthesis. Bas ...

ELSEVIER SCIENCE SA2021

Editorial: Modeling and Applications of Optoelectronic Devices for Access Networks

Nico de Rooij

2021

Generalized Boltzmann relations in semiconductors including band tails

Christian Enz, Arnout Lodewijk M Beckers, Farzan Jazaeri

Boltzmann relations are widely used in semiconductor physics to express the charge-carrier densities as a function of the Fermi level and temperature. However, these simple exponential relations only apply to sharp band edges of the conduction and valence ...

AMER INST PHYSICS2021

Cable-Driven Robotic Interface for Lower Limb Neuromechanics Identification

Mohamed Bouri

This paper presents a versatile cable-driven robotic interface to investigate the single-joint joint neuromechanics of the hip, knee and ankle in the sagittal plane. This endpoint-based interface offers highly dynamic interaction and accurate position cont ...

2021