Concept
Waveguide
Publications associées (237)
Electromagnetic characterization of nonevaporable getter properties between 220-330 and 500-750 GHz for the Compact Linear Collider damping rings
Carlo Zannini, Eirini Koukovini Platia, Giovanni Rumolo
Due to its effective pumping ability, nonevaporable getter (NEG) coating is considered for the vacuum chambers of the Compact Linear Collider (CLIC) electron damping rings (EDR). The aim is to suppress fast beam ion instabilities. The electromagnetic (EM) ...
2017Compact Drop-on-Demand Apparatus Using Light Actuation Through Optical Fibers
Demetri Psaltis, Christophe Moser, Paul Delrot
A drop delivery system comprising a light source; an optical waveguide bringing light from the light source; and a liquid supplying means configured to bring a liquid at a tip of the optical waveguide, wherein the light source and the optical waveguide are ...
2017On the Optimisation of Multi-Degree-of-Freedom Acoustic Impedances of Low-Frequency Electroacoustic Absorbers for Room Modal Equalisation
Hervé Lissek, Etienne Thierry Jean-Luc Rivet, Sami Driss Karkar
Low-frequency electroacoustic absorbers have recently been developed as a solution for the modal equalisation. Firstly investigated in waveguides, the technique consists in matching the acoustic impedance at a closed-box loudspeaker diaphragm to the charac ...
2017Higher order Larmor radius corrections to guiding-centre equations and application to fast ion equilibrium distributions
Jonathan Graves, Wilfred Anthony Cooper, David Pfefferlé, Samuel Lanthaler
An improved set of guiding-centre equations, expanded to one order higher in Larmor radius than usually written for guiding-centre codes, are derived for curvilinear flux coordinates and implemented into the orbit following code VENUS-LEVIS. Aside from gre ...
Iop Publishing Ltd2017Electromagnetic Inspired Acoustic Metamaterials
Seyyed Hussein Seyyed Esfahlani
This thesis deals with electromagnetic inspired acoustic metamaterials, enabling sound-matter interactions in different wave scenarios that include propagation, guided-waves, radiation, refraction, reflection and transmission. To this end, a particular emp ...
EPFL2017Technical Report: Optimal Current Trajectories for Power Converters with Minimal Common Mode Voltage
This article addresses the topic of computing optimized pulse patterns with common mode voltage constraints. The main thrust is to obtain tractable reformulations of the CMV constraints in the frequency domain in order to avoid complex mixed time-frequency ...
2017Effective SAW excitation on non-piezoelectric substrate using AlScN piezoelectric thin film BAW/SAW hybrid transducer
Paul Muralt, Mohammad Fazel Parsapour Kolour, Vladimir Pashchenko, Sylvain Ballandras
Acoustic delay lines based on Al0.85Sc0.15N thin film hybrid transducers were investigated by finite element modeling. It was found that an acoustic impedance matching between transducer and non-piezoelectric substrate material plays a crucial role to effi ...
Ieee2017High spectral resolution waveguide spectrometer with enhanced throughput for space and commercial applications
This dissertation presents the results concerning the development of an innovative high spectral resolution waveguide spectrometer, from the concept to the prototype demonstration and the test results. The main innovative aspects of this instrument are the ...
EPFL2016Excitation of resonant plasmonic cavities by integrated waveguides for sensing applications
Optical sensors represent a large growing market which is nowadays focusing onto advancement in mobile technology. Innovations in the field of optical sensors are mostly driven by the technological advancements in the domain of micro & nanofabrication. One ...
EPFL2016Site-controlled quantum dots coupled to photonic crystal waveguides
Elyahou Kapon, Alok Rudra, Benjamin Dwir, Alexey Lyasota, Clément William Tendaï Jarlov, Bruno Marie Dominique Rigal, Irina Kulkova, Jakob Rosenkrantz De Lasson, Jesper Mork
We demonstrate selective optical coupling of multiple, site controlled semiconductor quantum dots (QDs) to photonic crystal waveguide structures. The impact of the exact position and emission spectrum of the QDs on the coupling efficiency is elucidated. Th ...
2016