Publications by Jae-Woo Choi | EPFL Graph Search

Search for high-mass exclusive diphoton production with tagged protons in proton-proton collisions at √s=13 TeV

Patrick Berger, Rakesh Chawla, Ian Smith, Jung Eung Park, Thomas Mountford, Matthias Finger, Matteo Galli, Maria Isabel Cordero Campana, Xiaoqiang Wang, Jian Zhao, James Gonzalo King, Mirko Kovac, Hua Zhang, Joo Yeon Kim, Jae-Woo Choi, Pedro Camilo de Oliveira e Silva, Young Min Kim, Myun Sik Kim, Gabriele Grosso, Qian Wang, Varun Sharma, Michele De Palma, Hyungjun Lee, Chia-Chun Chen, Siyuan Wang, Özdemir Can Kara, Shivom Sharma, Jian Wang, Yi Zhang, Bokyoung Kim, Rahul Kumar Gupta, Ling Zhou, Mithlesh Kumar, Chenyang Wang, Matthias Wolf, Chang-Hyun Park, Anna Mascellani, Yikai Yang, Zhenyu Wang, Seonwoo Lee, Wei-Hsiang Lin, , , , , , , , , , , , , , , , , , , , , , , , , , , ,

Measurement of the inclusive and differential t(t)over-bar gamma cross sections in the dilepton channel and effective field theory interpretation in proton-proton collisions at root s=13 TeV

Jean-François Carlin, Rakesh Chawla, Richard Pitts, Arvind Shah, Ian Smith, Randoald Müller, Carlos Andres Peña Reyes, Jung Eung Park, Thomas Mountford, Matthias Finger, Jin Won Seo, Johannes Steen, Josef Andreas Schuler, Olivier Martin, Melody Swartz, Kyumin Lee, Hoang-Trang Lam, Maria Isabel Cordero Campana, Ananda Sankar Roy, Bertrand François, Yogesh Singh Chauhan, Xiaoqiang Wang, Miguel Fernández Ruiz, Sun Hee Kim, Jian Zhao, João Miguel das Neves Duarte, Justin Terence Notz Pekkanen, Joo Yeon Kim, Alexis Kalogeropoulos, Jae-Woo Choi, Pedro Camilo de Oliveira e Silva, Cristopher Ariel Zeballos Avila, Myun Sik Kim, Chao Wang, Yixing Chen, Aravind Kumar Chandiran, Tian Cheng, Ana Margarida Da Costa Ricardo, , , , , , , , , , , ,

Thermo-optic tuning of spectral broadening in a nonlinear Ultra-Silicon-Rich Nitride grating

Jae-Woo Choi

Temperature tuning of spectral broadening induced by a nonlinear grating is experimentally demonstrated. The bandwidth is observed to decrease as temperature increases, corresponding to a red-shift in the high dispersion region of the Bragg grating. ...

IEEE2020

Efficient Solar-vapor Generation in Hollow-mesoporous Plasmonic Nanoshells

Jeffrey Alan Hubbell, Thomas La Grange, Demetri Psaltis, Jae-Woo Choi, Seyyed Mohammad Hosseini Hashemi, Ye Pu, Marcin Stefan Zielinski, Miguel Antonio Modestino

Plasmonic nanostructures have shown great promise in solar thermal applications. Here we report highly efficient solar vapor generation using hollow-mesoporous plasmonic nanoshells, where the steam production is significantly enhanced by the extended activ ...

IEEE2018

Membrane-less electrolyzer

Demetri Psaltis, Jae-Woo Choi, Seyyed Mohammad Hosseini Hashemi, Miguel Antonio Modestino

The present invention concerns a membrane-less electrolyzer comprising a fluidic channel for receiving an electrolyte fluid; a first electrode and a second electrode located inside the fluidic channel, the first and second electrode permitting to extract a ...

2016

Optofluidics of plants

Demetri Psaltis, Jae-Woo Choi, Andreas Vasdekis

Optofluidics is a tool for synthesizing optical systems, making use of the interaction of light with fluids. In this paper we explore optofluidic mechanisms that have evolved in plants where sunlight and fluidic control combine to define most of the functi ...

2016

Hollow Mesoporous Plasmonic Nanoshells for Enhanced Solar Vapor Generation

Jeffrey Alan Hubbell, Thomas La Grange, Demetri Psaltis, Jae-Woo Choi, Ye Pu, Seyyed Mohammad Hosseini Hashemi, Ye Pu, Marcin Stefan Zielinski, Miguel Antonio Modestino

In the past decade, nanomaterials have made their way into a variety of technologies in solar energy, enhancing the performance by taking advantage of the phenomena inherent to the nanoscale. Recent examples exploit plasmonic core/shell nanoparticles to ac ...

American Chemical Society2016

Ablation device and method for subsurface biological tissue ablation

Alexandre Goy, Demetri Psaltis, Thomas Jean Victor Marie Lanvin, Jae-Woo Choi

The present invention relates to a subsurface laser-induced optical breakdown (LIOB) ablation system including an optical source for providing optical pulses and an optical waveguide for guiding the optical pulses to a subsurface target biological tissue s ...

2015

Catheter for sub-surface ablation in biological tissue

Demetri Psaltis, Thomas Jean Victor Marie Lanvin, Jae-Woo Choi, Donald Benjaman Conkey

The present invention concerns a subsurface laser-induced optical breakdown (LIOB) catheter including a probe assembly for providing at least one optical pulse to a subsurface target biological tissue site; and a waveguide for guiding the at least one opti ...

2015

A micropillar array for sample concentration via in-plane evaporation

Demetri Psaltis, Jae-Woo Choi, Seyyed Mohammad Hosseini Hashemi

We present a method to perform sample concentration within a lab-on-a-chip using a microfluidic structure which controls the liquid-gas interface through a micropillar array fabricated in polydimethylsiloxane between microfluidic channels. The microstructu ...

American Institute of Physics2014

Solar thermal harvesting for enhanced photocatalytic reactions

Demetri Psaltis, Jae-Woo Choi, Seyyed Mohammad Hosseini Hashemi

The Shockley-Queisser limit predicts a maximum efficiency of 30% for single junction photovoltaic (PV) cells. The rest of the solar energy is lost as heat and due to phenomena such as reflection and transmission through the PV and charge carrier recombinat ...

Royal Society of Chemistry2014

Surface optofluidics

Julien Cuennet, Demetri Psaltis, Jae-Woo Choi, Andreas Vasdekis, Wuzhou Song, Luciano De Sio

Surfaces -defined as the interfaces between solids and liquids- have attracted much attention in optics and biology, such as total internal reflection imaging (TIRF) and DNA microarrays. Within the context of optofluidics however, surfaces have received li ...

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2010

3-dimensional electrode patterning within a microfluidic channel using metal ion implantation

Samuel Rosset, Muhamed Niklaus, Herbert Shea, Demetri Psaltis, Jae-Woo Choi, James Adleman

The application of electrical fields within a microfluidic channel enables many forms of manipulation necessary for lab-on-a-chip devices. Patterning electrodes inside the microfluidic channel generally requires multi-step optical lithography. Here, we uti ...

Royal Society of Chemistry2010

Lithium niobate nanowires: Growth, second-harmonic and dielectrophoretic properties

László Forró, Rachel Grange, Arnaud Magrez, Demetri Psaltis, Jae-Woo Choi, Chia-Lung Hsieh, Ye Pu, Ye Pu

2009

Micro-Air-Bag Actuated Tunable Optofluidic Elements

Demetri Psaltis, Jae-Woo Choi, Andreas Vasdekis, Wuzhou Song

We introduce for the first time a tuning mechanism for optofluidic devices by embedding a Micro-Air-Bag (MAB) actuator inside a microfluidic chip. Multiple tunable optical elements controlled through the pressure of compressed air were demonstrated. (C)200 ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2009

Lithium niobate nanowires synthesis, optical properties, and manipulation

László Forró, Rachel Grange, Arnaud Magrez, Demetri Psaltis, Jae-Woo Choi, Chia-Lung Hsieh, Rita Smajda, Ye Pu, Ye Pu

Free-standing lithium niobate nanowires (LiNbO3) are synthesized by the hydrothermal route. The polarization response of the second harmonic generation (SHG) signal is measured in a single nanowire and used to identify the crystal orientation by matching w ...

2009

Bacteria manipulation with optically controlled fluidic valves

Demetri Psaltis, Jae-Woo Choi, James Adleman

Optically controlled fluidic valves are utilized to concentrate and detect bacteria, selectively switch the pathway of the bacteria, and demonstrate bidirectional fluidic flow within a microfluidic channel. (C) 2009 Optical Society of America ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2009