A5018366384- Laser-Matter Interactions and Applications
- Quantum Information and Cryptography
- Digital Holography and Microscopy
- Advanced Fluorescence Microscopy Techniques
- Orbital Angular Momentum in Optics
- Quantum Mechanics and Applications
- Advanced Fiber Laser Technologies
- Random lasers and scattering media
- Cold Atom Physics and Bose-Einstein Condensates
- Optical Coherence Tomography Applications
- Advanced Frequency and Time Standards
Institut des NanoSciences de Paris
2024
Sorbonne Université
2023-2024
Centre National de la Recherche Scientifique
2024
ETH Zurich
2023
Adaptive optics (AO) has revolutionized imaging in fields from astronomy to microscopy by correcting optical aberrations. In label-free microscopes, however, conventional AO faces limitations because of the absence a guide star and need select an optimization metric specific sample process. Here, we propose approach leveraging correlations between entangled photons directly correct point spread function. This star–free method is independent specimen modality. We demonstrate biological...
Using a single calcium ion confined in surface-electrode trap, we study the interaction of electric quadrupole transitions with passively phase-stable optical standing wave field sourced by photonics integrated within trap. We characterize fields through spatial mapping Rabi frequencies both carrier and motional sideband as well ac Stark shifts. Our measurements demonstrate ability to engineer favorable combinations frequency shifts for specific tasks quantum state control metrology.
High-dimensional entanglement is a promising resource for quantum technologies. Being able to certify it any state essential. However, date, experimental certification methods are imperfect and leave some loopholes open. Using single-photon sensitive time-stamping camera, we quantify high-dimensional spatial by collecting all output modes without background subtraction, two critical steps on the route towards assumptions-free certification. We show position-momentum Einstein-Podolsky-Rosen...
Entanglement is a central resource in quantum technologies. In this respect, high-dimensional entangled states are very promising for developing robust communication schemes and enhanced imaging protocols. Being able to quantify entanglement quickly accurately therefore essential. However, date, all experimental methods use assumptions about the detected state or imperfect measurement techniques, such as single-outcomes accidental subtractions. certification processes not only slow, but they...
Photon-pair correlations in spontaneous parametric down-conversion are ubiquitous quantum photonics. The ability to engineer their properties for optimizing a specific task is essential, but often challenging practice. We demonstrate the shaping of spatial between entangled photons form arbitrary amplitude and phase objects. By doing this, we encode image information within pair correlations, making it undetectable by conventional intensity measurements. It enables transmission complex,...
Over the last 50 years entangled photon pairs have received attention for use in lowering flux two-photon absorption imaging and spectroscopy. Despite this, evidence (ETPA) effects remain highly debated, especially at low-fluxes. Here, we structure transverse spatial correlations of to signs ETPA room-temperature organic inorganic chromophores, low-flux regime. We demonstrate our scheme be robust common artifacts that previously hampered detection such as linear background fluorescence, show...