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Three-dimensional mechanical modelling of muscles is essential for various biomechanical applications and clinical evaluation, but it requires a tedious manual processing of numerous images. A muscle reconstruction method is presented based on a reduced set of images to generate an approximate parametric object from basic dimensions of muscle contours. A… (More)
Photon sources are fundamental components for any quantum photonic technology. The ability to generate high count-rate and low-noise correlated photon pairs via spontaneous parametric down-conversion using bulk crystals has been the cornerstone of modern quantum optics. However, future practical quantum technologies will require a scalable integration… (More)
Accurate estimation of joint loads implies using subject-specific musculoskeletal models. Moreover, as the lines of action of the muscles are dictated by the soft tissues, which are in turn influenced by gravitational forces, we developed a method to build subject-specific models of the lower limb in a functional standing position. Bones and skin envelope… (More)
We present spectrally resolved interferometry of the Be star γ Cas in '88, '91, '93 and '94, obtained with the GI2T in-terferometer. The analysis of high spatial resolution data across the Hα line reveals azimuthally asymmetric variations which are correlated with those of V/R of the Hα profile. This correlation supports a prograde one-armed oscillation… (More)
We report the first spectrally-resolved observations of the Be star γ Cas in the He i λ6678 and Hβ emission lines using the Grand Interféromètrè a 2 Télescopes in the southern France. Milliarcsecond angular resolution measurements were carried in both lines and their neighbouring continuum during October and November 1993. The He i λ6678 and Hβ maximum… (More)
Context. Among optical stellar interferometers, the CHARA Array located at Mt Wilson in California offers the potential of very long baselines (up to 330 m) and the prospect of coupling multiple beam combiners. This paper presents the principle and the measured performance of VEGA, Visible spEctroGraph and polArimeter installed in September 2007 at the… (More)
Long baseline interferometric observations of δ Cep at the " Grand Interféromètrè a deux Télescopes " give the first measurement of its mean angular diameter. Combined with the mean linear radius deduced from spectroscopic data, the mean angular diameter gives an improved distance determination for δ Cep. Size pulsations are marginally detected and the… (More)
Context. Interferometry can provide spatially resolved observations of massive star binary systems and their colliding winds, which thus far have been studied mostly by means of spatially unresolved observations. Aims. In this work, we present the first AMBER/VLTI observations, taken at orbital phase 0.32, of the Wolf-Rayet and O (WR+O) star binary system γ… (More)
We present a silicon-on-insulator quantum photonic device able to generate and analyze two maximally entangled qubits. Quantum interference between resonant four-wave mixing sources, phase-stable frequency-selection, and quantum state tomography are shown.
We present an analysis of a single photon detector system capable of achieving near-unity detection efficiency. It consist of waveguide-coupled superconducting nanowires as short as 1 μm embedded in a racetrack resonator.