A5092029703- Diamond and Carbon-based Materials Research
- Near-Field Optical Microscopy
- Advanced Fiber Laser Technologies
- Advanced Fluorescence Microscopy Techniques
- Photonic and Optical Devices
- Photonic Crystals and Applications
- Advanced Electron Microscopy Techniques and Applications
- Electron and X-Ray Spectroscopy Techniques
- Advanced X-ray Imaging Techniques
- Force Microscopy Techniques and Applications
- Magneto-Optical Properties and Applications
- High-pressure geophysics and materials
- Optical Coatings and Gratings
- Characterization and Applications of Magnetic Nanoparticles
- Semiconductor materials and devices
- Advancements in Semiconductor Devices and Circuit Design
Université Paris-Saclay
2024
Laboratoire de physique des Solides
2024
Centre National de la Recherche Scientifique
2024
Université de Bordeaux
2023-2024
Institut d’Optique Graduate School
2023-2024
Understanding and mastering quantum electrodynamics phenomena is essential to the development of nanophotonics applications. While tailoring local vacuum field has been widely used tune luminescence rate directionality a emitter, its impact on their transition energies barely investigated exploited. Fluorescent defects in nanosized diamonds constitute an attractive nanophotonic platform investigate Lamb shift emitter embedded dielectric nanostructure with high refractive index. Using...
We report on the design, realization, and experimental investigation by spatially resolved monochromated electron energy loss spectroscopy (EELS) of high-quality-factor cavities with modal volumes smaller than λ3, λ being free-space wavelength light. The are based a slot defect in 2D photonic crystal slab made up silicon. They optimized for high coupling electrons accelerated to 100 kV quasi-transverse electrical modes polarized along direction. studied two geometries took advantage deep...
Abstract This conference proceeding reports on the usage and applications of a high numerical aperture mirror for cathodoluminescence other photon-based spectroscopies in scanning transmission electron microscope.
We use a simple and effective experimental method for determining the radiative quantum yield of single silicon-vacancy centers (SiV) in nanometric-sized diamonds (NDs). It is based on variations luminescence lifetimes SiVs induced by controlled change NDs' dielectric environment. The deposition high refractive index immersion oil thin polymer sample containing NDs with an average size 20 nm induces noticeable shortening SiV lifetimes, clear signature strong contribution to decays. While...
Abrikosov vortices play a fundamental role in the magnetic and electric properties of superconductors. The study their pinning forces is essential to better understand stability vortex lattices, with aim increasing critical currents However, challenging because nanometric sizes large variation forces. In this Letter, we use single nitrogen-vacancy center nanodiamond as nanoscale magneto sensor locally probe effects thin niobium film. This simple, far-field optical approach also offers...
Magneto-optical imaging of quantized magnetic flux tubes in superconductors - Abrikosov vortices is based on Faraday rotation light polarization within a magneto-optical indicator placed top the superconductor. Due to severe aberrations induced by thick substrate, spatial resolution usually well beyond optical diffraction limit. Using high refractive index solid immersion lens onto garnet we demonstrate wide field single quanta Niobium film with better than 600 nm and sub-second acquisition...
We report on the design, realization and experimental investigation by spatially resolved monochromated electron energy loss spectroscopy (EELS) of high quality factor cavities with modal volumes smaller than $\lambda^3$, $\lambda$ free-space wavelength light. The are based a slot defect in 2D photonic crystal slab made up silicon. They optimized for coupling electrons accelerated to 100 kV, quasi-Transverse Electrical modes polarized along direction. studied two geometries. first geometry,...