Publications associées à Multi-photon polymerization using upconversion nanoparticles for tunable feature-size printing

Publications associées (9)

Surface modification of single-walled carbon nanotubes (SWCNTs) for encapsulation in biomedical sensing applications

Biosensors are increasingly utilized across various fields, including medical applications, food safety, and environmental monitoring. They are particularly important in the following application scenarios including real-time monitoring, long-term monitori ...

EPFL2025

Artifacts in optical projection tomography due to refractive-index mismatch: model and correction

Michaël Unser, Jonathan Yuelin Dong, Aleix Boquet I Pujadas, Yan Liu

Optical projection tomography (OPT) is a powerful tool for three-dimensional (3D) imaging of mesoscopic samples. While it is able to achieve resolution of a few tens of microns over a sample volume of several cubic centimeters, the reconstructed images oft ...

2022

Neutron Bragg edge imaging for strain characterization in powder bed additive manufacturing environments

Roland Logé, Reza Esmaeilzadeh, Claire Navarre, Shieren Sumarli

Spatially resolved studies of crystalline structures, e.g. lattice spacings, are enabled by recording the transmitted spectra in neutron Bragg edge imaging. The recorded signals are, however, a result of through-thickness averaging of the probed specimen i ...

ELSEVIER2022

Metallosupramolecular polymers as precursors for platinum nanocomposites

Emad Oveisi

Nanocomposites comprising a polymer matrix and metallic nanoparticles (NPs) can merge the structural features of the matrix material with the functional characteristics of the NPs. While such materials are promising for a wide range of applications, their ...

ROYAL SOC CHEMISTRY2022

A high-cooperativity, nano-optomechanical system comprised of high stress Si3N4

Tobias Kippenberg, Nils Johan Engelsen, Amirali Arabmoheghi

We report the design fabrication and characterization of a monolithic nano-optomechanical transducer comprised of high stress silicon nitride (Si3N4). Our system features a one dimensional Fabry-Perot photonic crystal cavity (Q approximate to 10(5)) integr ...

IEEE2021

Low-Loss Integrated Nanophotonic Circuits with Layered Semiconductor Materials

Tobias Kippenberg, Junqiu Liu, Rui Ning Wang, Jijun He, Arslan Sajid Raja, Mikhail Churaev, Clément Christian Javerzac, Tianyi Liu, Philippe Andreas Rölli

Monolayer transition-metal dichalcogenides with direct bandgaps are emerging candidates for optoelectronic devices, such as photodetectors, light-emitting diodes, and electro-optic modulators. Here we report a low-loss integrated platform incorporating mol ...

AMER CHEMICAL SOC2021

Block Copolymer Stabilized Liquid Nanodroplets Facilitate Efficient Triplet Fusion-Based Photon Upconversion in Solid Polymer Matrices

Felipe Andres Saenz Padilla

Sensitized triplet-triplet annihilation-based photon upconversion is a photo-physical process that affords anti-Stokes-shifted emission after annihilation of two metastable triplet excitons of an emitter dye and the formation of a fluorescent singlet state ...

AMER CHEMICAL SOC2021

A Magic Angle Spinning Activated O-17 DNP Raser

David Lyndon Emsley, Michael Allan Hope, Snaedis Björgvinsdóttir

In the raser effect, a sample spontaneously emits continuous radiofrequency radiation, allowing exceptionally narrow NMR line widths to be recorded without applying pulses. To achieve this phenomenon, a large negative magnetization must be induced, which w ...

2021

High fill-factor miniaturized SPAD arrays with a guard-ring-sharing technique

Edoardo Charbon, Kazuhiro Morimoto

We present a novel guard-ring-sharing technique to push the limit of SPAD pixel miniaturization, and to demonstrate the operation of SPAD arrays with a 2.2 mu m-pitch, the smallest ever reported. Device simulation and preliminary tests suggest that the opt ...

2020