Publications associées à Euclid IV. The NISP Calibration Unit

Publications associées (12)

An Indication of Gas Inflow in Clumpy Star-forming Galaxies near z ∼ 1: Lower Gas-phase Metallicities in Clumpy Galaxies Compared to Nonclumpy Galaxies

Despite the ubiquity of clumpy star-forming galaxies at high-redshift, the origin of clumps are still largely unconstrained due to the limited observations that can validate the mechanisms for clump formation. We postulate that if clumps form due to the ac ...

IOP Publishing Ltd2025

Correlated vibrational coherence and spectral diffusion analysis of multi-level systems using two-dimensional electronic spectroscopy

Viet Le Duc

Two-dimensional electronic spectroscopy (2DES) is used to theoretically and experimentally study a minimal three level “V” system (3LVS) with one ground state and two excited states coupled to common displaced harmonic oscillator modes. The third order non ...

2025

Improvements of readout signal integrity in mid-infrared superconducting nanowire single-photon detectors

Gregor Gibson Taylor

Superconducting nanowire single-photon detectors (SNSPDs) in the mid-infrared (MIR) have the potential to open up numerous opportunities in fields such as exoplanet searches, direct dark matter detection, physical chemistry, and remote sensing. One challen ...

Aip Publishing2024

Euclid preparation: XXXIX. The effect of baryons on the halo mass function

Georges Meylan, Frédéric Courbin

Published by Oxford University Press on behalf of Japanese Society of Plant Physiologists. All rights reserved.The Euclid photometric survey of galaxy clusters stands as a powerful cosmological tool, with the capacity to significantly propel our understand ...

2024

Resistively controlled primordial magnetic turbulence decay

Andrii Neronov

Context. Magnetic fields generated in the early Universe undergo turbulent decay during the radiation-dominated era. The decay is governed by a decay exponent and a decay time. It has been argued that the latter is prolonged by magnetic reconnection, which ...

EDP SCIENCES S A2024

Euclid preparation LI. Forecasting the recovery of galaxy physical properties and their relations with template-fitting and machine-learning methods

Georges Meylan, Frédéric Courbin

Euclid will collect an enormous amount of data during the mission’s lifetime, observing billions of galaxies in the extragalactic sky. Along with traditional template-fitting methods, numerous machine learning (ML) algorithms have been presented for comput ...

2024

Synergistic interactions between PtRu catalyst and nitrogen-doped carbon support boost hydrogen oxidation

Andreas Schueler, Jeremy Luterbacher, Xile Hu, Anna Krammer, Weiyan Ni, Josephine Lederballe Meibom, Lichen Bai, Miyeon Chang, Seunghwa Lee, Songlan Sun, Seongmin Jin, Wenchao Ma, Yiwei Zheng

Hydroxide exchange membrane fuel cell (HEMFC) is a potentially cost-effective energy conversion technology. However, current state-of-the-art HEMFCs require a high loading of platinum-group-metal (PGM) catalysts, especially for the hydrogen oxidation react ...

NATURE PORTFOLIO2023

Dark Energy Survey Year 3 results: Cosmological constraints from galaxy clustering and weak lensing

Jonathan Andrew Blazek

We present the first cosmology results from large-scale structure using the full 5000 deg(2) of imaging data from the Dark Energy Survey (DES) Data Release 1. We perform an analysis of large-scale structure combining three two-point correlation functions ( ...

American Physical Society2022

Euclid: Forecast constraints on consistency tests of the ?CDM model

Georges Meylan, Frédéric Courbin

Context. The standard cosmological model is based on the fundamental assumptions of a spatially homogeneous and isotropic universe on large scales. An observational detection of a violation of these assumptions at any redshift would immediately indicate th ...

EDP SCIENCES S A2022

Synthetic Calcium Silicate Hydrates

Abhishek Kumar

Since the introduction of cementitious materials over 200 years ago, its use has multiplied many fold to be currently at 3 billion tonnes per year, accounting for about 8% of worldwide carbon emission which is forecast to double within the next 30 years. U ...

EPFL2017

On-chip near-infrared optical spectrometer based on single-mode Epo waveguide and gold nanoantennas

Irène Antoinette Philipoussis, Toralf Scharf, Joab Di Francesco

We report about optical spectrometry using gold nanostructures printed on top of an integrated optical waveguide. The optical waveguide is a single-mode buried waveguide made from a combination of photo-polymerizable materials and is fabricated by photolit ...

Spie-Soc Photo-Optical Instrumentation Engineers2014

High numerical aperture silicon collimating lens for mid-infrared quantum cascade lasers manufactured using wafer-level techniques

Pierre-Yves Baroni, Hans Peter Herzig, Lubos Hvozdara, Antoine Muller, Joab Di Francesco

We present an aspheric collimating lens for mid-infrared (4-14 µ) quantum cascade lasers. The lenses were etched into silicon by an inductively coupled plasma reactive ion etching system on wafer level. The high refractive index of silicon reduces the heig ...

2012