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Publications associées (67)
Parity-time symmetric metamaterials and metasurfaces for loss-immune and broadband acoustic wave manipulation
We explore the largely uncharted scattering properties of acoustic systems that are engineered to be invariant under a special kind of space-time symmetry, consisting in taking their mirror image and running time backwards. Known as Parity-Time symmetry, t ...
2014Optical Mirror from Laser-Trapped Mesoscopic Particles
Johann Rohner, Jean-Marc Fournier
Trapping of mesoscopic particles by optical forces usually relies on the gradient force, whereby particles are attracted into optical wells formed by landscaping the intensity of an optical field. This is most often achieved by optical Gaussian beams, inte ...
Amer Physical Soc2014Further study on iterative control loop for aberration correction in imaging systems with single mode fibre aperture
An iterative control system was designed for compensation of wavefront aberration utilizing a micromachined deformable mirror through simulated annealing algorithm. 37 elements within a deformable mirror are controlled individually in a closed-loop to maxi ...
Natl Inst Optoelectronics2013Performances of Rh and Mo mirrors under JET exposure
The aim of this work was to provide a comprehensive surface characterization of rhodium and molybdenum mirrors exposed on the main chamber wall of JET during campaigns with carbon plasma-facing components. As determined using X-ray photoelectron spectrosco ...
Elsevier2013A two-arm coordination model for phantom limb pain rehabilitation
Following limb loss, patients usually continue having sensations on their missing limbs as if they were still present. Signicant amount of such sensations are painful and referred as Phantom Limb Pain (PLP). Previous research has shown that providing the p ...
ACM Press2013Vertical cavity surface emitting laser cavity with low thermal impedance
Elyahou Kapon, Vladimir Iakovlev, Pascal Gallo
The present invention concerns new designs of VCLs with high contrast gratings (HCG) combined with diamond layer as a bottom mirror. They can be realized either with a classical V-shaped pumping scenario, or through the introduction of the pumping beam fro ...
2013Echo thresholds for reflections from acoustically diffusive architectural surfaces
Christof Faller, Andreas Walther
When sound reflects from an irregular architectural surface, it spreads spatially and temporally. Extensive research has been devoted to prediction and measurement of diffusion, but less has focused on its perceptual effects. This paper examines the effect ...
Acoustical Society of America2013Large MEMS-based programmable reflective slit mask for multi-object spectroscopy fabricated using multiple wafer-level bonding
Nico de Rooij, Michael David Canonica, Wilfried Noell
Multi-object spectroscopy (MOS) allows measuring infrared spectra of faint astronomical objects that provides information on the evolution of the Universe. MOS requires a slit mask for object selection at the focal plane of the telescope. We are developing ...
Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2012Large micromirror array for generating programmable slit masks for Multi-Object Spectroscopy
Nico de Rooij, Michael David Canonica, Wilfried Noell
Multi-object spectroscopy (MOS) is a powerful tool for space and ground-based telescopes for the study of the formation and evolution of galaxies. This technique requires a programmable slit mask for astronomical object selection. We are engaged in a Europ ...
Spie-Int Soc Optical Engineering2012