Publications de Wei Yan | EPFL Graph Search

Second harmonic generation in glass-based metasurfaces using tailored surface lattice resonances

Olivier Martin, Fabien Sorin, Jérémy Butet, Wei Yan, Kuang-Yu Yang, Dang Tùng Nguyen, Andreas Leber, Chaoqun Dong

Dielectric metasurfaces have shown prominent applications in nonlinear optics due to strong field enhancement and low dissipation losses at the nanoscale. Chalcogenide glasses are one of the promising materials for the observation of nonlinear effects than ...

2021

Spectrally Selective Mid-Wave Infrared Detection Using Fabry-Perot Cavity Enhanced Black Phosphorus 2D Photodiodes

Christophe Ballif, Quentin Thomas Jeangros, Wei Yan

Thin two-dimensional (2D) material absorbers have the potential to reduce volume-dependent thermal noise in infrared detectors. However, any reduction in noise must be balanced against lower absorption from the thin layer, which necessitates advanced optic ...

AMER CHEMICAL SOC2020

High-efficiency super-elastic liquid metal based triboelectric fibers and textiles

Fabien Sorin, Wei Yan, Andreas Leber, Yunpeng Qu, Chaoqun Dong, Dang Tùng Nguyen, Marco Volpi, Nicola Bartolomei, Rajasundar Chandran

Fibers that harvest mechanical energy via the triboelectric effect are excellent candidates aspower sources for wearable electronics and functional textiles. Thus far however, their fab-rication remains complex, and exhibited performances are below the sta ...

Nature Research2020

Ultralong, complexly structured micro- and nanoscale metallic glasses and fibers

Grégoire Courtine, Fabien Sorin, Wei Yan, Inès Richard

The present invention and its embodiments propose a simple, unique, and scalable method for producing extremely long, highly uniform, and well-ordered micro- and nanoscale metallic glasses via thermal drawing the method comprising at least the steps of pre ...

2020

Nanoscale Controlled Oxidation of Liquid Metals for Stretchable Electronics and Photonics

Stéphanie Lacour, Fabien Sorin, Wei Yan, Louis Marie Philippe Martin-Monier

Liquid metals based on gallium have attracted considerable attention for soft and bioelectronics, thanks to their excellent combination of stretchability and conductivity. Nevertheless, owing to their large surface tension, these materials are notoriously ...

2020

Structured nanoscale metallic glass fibres with extreme aspect ratios

Stéphanie Lacour, Grégoire Courtine, Vasiliki Tileli, Fabien Sorin, Jordan Squair, Giuseppe Schiavone, Nicholas David James, Wei Yan, Yunpeng Qu, Dang Tùng Nguyen

Micro- and nanoscale metallic glasses offer exciting opportunities for both fundamental research and applications in healthcare, micro-engineering, optics and electronics. The scientific and technological challenges associated with the fabrication and util ...

Nature Publishing Group2020

Super-elastic multi-material optical fibers for health-care applications

Fabien Sorin, Wei Yan, Alexis Gérald Page, Yunpeng Qu, Dang Tùng Nguyen, Andreas Leber, Nicola Bartolomei

Stretchable optical and electronic fibers constitute increasingly important building blocks for a myriad of applications, particularly in robotics, soft prosthesis, surgical tools and implants, and smart medical textiles. The integration of multi-material ...

SPIE-INT SOC OPTICAL ENGINEERING2019

Microstructured Multimaterial Fibers for Microfluidic Sensing

Fabien Sorin, Wei Yan, Alexis Gérald Page, Dang Tùng Nguyen, Chaoqun Dong

The thermal drawing of a uniform capillary-like fiber that integrates an encapsulated microchannel and an embedded capacitor system within a polymeric cladding is demonstrated. Such a fiber construct has versatile functionalities applicable to microfluidic ...

Wiley2019

Self-assembly of nanostructured glass metasurfaces via templated fluid instabilities

Hatice Altug, Fabien Sorin, Wei Yan, Filiz Yesilköy, Alexis Gérald Page, Yunpeng Qu, Dang Tùng Nguyen, Arthur Le Bris, Louis Marie Philippe Martin-Monier, Kuan-Ting Ho

Modern devices require the tuning of the size, shape and spatial arrangement of nano-objects and their assemblies with nanometre-scale precision, over large-area and sometimes soft substrates. Such stringent requirements are beyond the reach of conventiona ...

Nature Publishing Group2019

Programmable self-assembled metasurface for strong field enhancement

Fabien Sorin, Wei Yan, Alexis Gérald Page, Dang Tùng Nguyen, Louis Marie Philippe Martin-Monier, Arthur Le Bris

Self-assembled chalcogenide metasurfaces is proposed for low-cost manufacturing on large-area unconventional substrates. Programmed control over particle arrangement and periodicity yields strong Fano resonances, highlighting novel applications for bio-det ...

IEEE2019