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NPM1 is a multifunctional nucleolar protein implicated in several processes such as ribosome maturation and export, DNA damage response and apoptotic response to stress stimuli. The NPM1 gene is involved in human tumorigenesis and is found mutated in one third of acute myeloid leukemia patients, leading to the aberrant cytoplasmic localization of NPM1. Recent studies indicated that the N6L multivalent...
In semiconductor-coupled micro and nano-cavities, the combination between tight light confinement and high optical nonlinearities open up new routes for the study of light-matter interaction in non-equilibrium driven dissipative systems. Even at the semiclassical level, coupled cavities may display a wide range of rich nonlinear dynamical phenomena such as instabilities and bifurcations [1]. Mode...
Wedge prisms shifting the visual field laterally create a mismatch between the straight ahead position signalled by vision and that encoded by extraretinal and head-on-trunk proprioceptive information. Short-term adaptation to left-deviating prisms in normal subjects results in a visuomotor attentional bias towards the right-hand side (aftereffect). Prismatic adaptation (PA) is usually induced through...
Efficient (−14 dB) parametric conversion is demonstrated using a novel platform where dispersion-engineered GaInP waveguides are created on a SiO2-Silicon substrate. The coupled 80 mW continuous wave pump power is still not limited by heating, owing to much improved thermal management.
We experimentally demonstrate wavelength conversion and bit-level memory operation in a hybridly integrated III-V on SOI photonic crystal nanolaser with total footprint of 6.2μm2 and record-energy of 6.4fJ/bit, showing error-free operation at 5Gb/s.
We report on optomechanical effects in 2D photonic crystal defect cavities coupled to integrated silicon waveguides of different widths. Mechanical modes are observed systematically on a chip scale. By tuning the excitation laser wavelength, we observe optical spring effects. We extract optomechanical coupling coefficients and demonstrate the dispersive and dissipative nature of optomechanical coupling...
Multi-cavity photonic systems, known as photonic molecules (PMs), are ideal multi-well potential building blocks for advanced quantum and nonlinear optics. A key phenomenon arising in double well potentials is the spontaneous breaking of the inversion symmetry, i.e. a transition from a delocalized to two localized states in the wells, which are mirror images of each other. Although few theoretical...
All-optical nonlinear phase noise reduction using an InP-over-SOI PhC nanocavity is experimentally demonstrated for 20-Gbit/s NRZ-QPSK signals. The phase-preserving intensitylimiting function results in an OSNR penalty reduction of 3.5 dB at a BER of 10-3. OCIS codes: (230.5298) Photonic crystals; (070.4340) Nonlinear optical signal processing; (060.1660) Coherent communications; (060.2330) Fiber...
Heterogeneous integration of III-V semiconductors on Silicon is one of the key technologies for next-generation on-chip optical interconnects. We extended this approach to nanophotonics by using photonic crystals to demonstrate highly efficient active devices.
Coherent population oscillations and carrier-induced nonlinear refractive index dispersion are implemented in an active semi-conductor photonic crystal nanocavity to increase its photonic lifetime and manipulate its optical response.
Résumé Objectif de l’étude Mieux comprendre les représentations des patientes atteintes de cancer du sein sur la place de leur médecin traitant (MT) dans la gestion des intercures pour identifier les obstacles à leur intervention, dans un contexte ou la volonté publique, l’épidémiologie et la démographie médicale tendent vers la nécessité de participation du MT. Malades et méthodes Étude rétrospective...
We present the first experimental demonstration of a novel class of hybrid III–V on silicon microlasers. This new type of laser revolves around the concept of resonant mirrors: two silicon cavities, directly coupled to the III–V laser mesa, provide high, narrow band reflection over a short distance. This results in a device that measures only 55 µm by 2µm and shows single-mode laser emission with...
III–V semiconductor photonic crystal nanolasers are heterogeneously integrated on a SOI waveguides circuitry. We demonstrate this approach constitutes an efficient way to interface these ultimate lasers. Coupling efficiency and optical bistability will be discussed.
A new optical switch is presented using InP/SOI hybrid photonic crystal nanocavity. Switching contrast of 11 dB with 20 mW peak power and recovery time of 14 ps are measured. NRZ wavelength conversion and power limiter are demonstrated at 10 Gb/s through system experiments with 6 and 1 mW peak power respectively.
We report on the improvement of the thermal dissipation of hybrid III-V/SOI nanolasers by encapsulating the structures in Silica. Careful design was necessary to obtain theoretical quality factor above 106. CW operation was then obtained.
We report on optical bistability based on injection locking of hybrid III-V/Silicon-on-Insulator (SOI) nanolaser. Switching power is measured below 40μW. 30ps switching time is deduced from gain recovery time measurement.
The heterogeneous integration of III–V semiconductor lasers on a silicon waveguide platform using DVS-BCB adhesive bonding is reviewed. Both mW-level lasers and ultra-compact laser sources are discussed.
Heterogeneous integration of III–V semiconductor compounds on SOI is one of the key technologies for next generation on chip optical interconnects. The use of photonic crystals nanolasers, within this context, represents a disruptive solution in terms of footprint, activation energy and ultrafast response. In this work, we study the evanescent wave coupling occurring between the nanolasers and a subjacent...
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