Ghiasi's Quantum Spintronics (QuSpin) Lab studies spin transport and magnetism in 2D and van der Waals materials, and — in close collaboration with the van der Sar group — pioneered a diamond-membrane dry-transfer technique that brings NV-ensemble ensembles into direct nanoscale contact with 2D antiferromagnets (e.g., CrSBr) to quantitatively image monolayer-thickness-dependent magnetic stray fields. This complements the well-established line of NV-ensemble quantum sensing experiments (DEER, NMR, T1-relaxometry) that reach pT/sqrt(Hz)-class sensitivities, extending the toolbox toward mechanical and single-atom/single-spin readout.
Giansiracusa is an early-career PI (ARC DECRA) working on ytterbium and other lanthanoid single-molecule magnets, combining synthesis, magnetometry and ab initio electronic-structure calculation to understand and engineer magnetic anisotropy and spin relaxation. The stated aim of his DECRA is to move Yb-based single-molecule magnets toward real-world application, which in practice means qubit and sensor use cases where long coherence at accessible temperatures matters. Positioned against the established body of NV-ensemble quantum sensing work — DEER, nanoscale NMR and T1 relaxometry protocols operating at pT/sqrt(Hz) field sensitivity — the relaxation-time engineering problem he is attacking is the molecular analogue of the T1/T2 optimisation that sets pT/sqrt(Hz) performance in NV ensembles. Small, new group; a candidate would have unusual latitude but limited infrastructure.
Giessen works on ultrafast nano-optics and plasmonics, plasmonic and metasurface sensors, femtosecond two-photon 3D-printed micro-optics (on fiber tips and detectors), widely tunable ultrafast/mid-IR sources for molecular sensing, and Rydberg-exciton quantum optics in cuprous oxide. In the broader landscape of NV-centre ensemble quantum sensing (DEER, nano-NMR, T1 relaxometry) operating near pT/sqrt(Hz) sensitivity, this work sits adjacent as a nanophotonic sensing and light-source enabler.
Gigan leads the Optical Imaging group at LKB, pioneering wavefront shaping and computational imaging through scattering media. Research directions: (1) Wavefront shaping / transmission matrix — measuring the ~10^5 optical modes of a scattering sample's transmission matrix to focus and image through highly scattering biological tissues; roadmap on deep tissue imaging (J. Phys. Photonics 2022, lead author); (2) Multimode quantum optics through complex media — spatially multimode squeezed states transmitted through scattering media for quantum-enhanced imaging; (3) Optical computing / AI — using multiple scattering as a physical neural network for reservoir computing and nonlinear machine learning (LightOn spin-off, 2016); (4) Neurophotonics applications — focusing through the skull for deep brain imaging. Two ERC grants (2011, 2017). Optica Fellow. IUF member (2016–2021).
Sylvain Gigan's PICO (Photonics, Information, and Complexity) group focuses on imaging through and with complex and scattering media. Research: (1) wavefront shaping through scattering media — adaptive optics and transmission matrix approaches for deep-tissue fluorescence imaging; (2) multimode quantum optics through complex media — pushing quantum light through scattering and multi-mode fibres; (3) analogue computing with random optical scattering media. Key for biosensing: deep tissue imaging at high spatial resolution and quantum-enhanced light manipulation.
Uses X-ray photoemission electron microscopy (X-PEEM) with XANES spectroscopy at synchrotron light sources to map crystal orientation and amorphous-to-crystalline transitions at ~10 nm resolution in biominerals (coral skeletons, sea urchin spines, mollusk nacre, tooth enamel).
Ginsberg's group devises new ultrafast electron- and optical-microscopy modalities to watch charge, energy, and structural dynamics in soft and hybrid materials (organic semiconductors, perovskites, biomolecular assemblies) on their native nanometer/femtosecond scales. The lab is actively recruiting postdocs to extend these methods toward operando imaging of energy materials.
Gleyzes is a CNRS researcher in the Rydberg Atoms team at LKB (successor to Serge Haroche's cavity-QED group), where he achieved the first quantum non-demolition detection of a single microwave photon. The team now prepares non-classical states of circular Rydberg atoms as probes for electric- and magnetic-field sensing below the standard quantum limit, uses quantum optimal control to navigate large Rydberg Hilbert spaces, and has demonstrated millisecond-lived circular states at room temperature, a route toward practical Rydberg-atom quantum sensors and simulators.
Glorieux leads the Quantum Fluids of Light and Nanophotonics group at LKB. Research directions: (1) Quantum fluids of light in atomic vapors — hot Rb/Cs vapor as paraxial photon fluids exhibiting superfluidity, soliton dynamics, and vortex formation; first analogue cosmological particle creation (Hawking effect) in a photon fluid (Nature Communications 2022); (2) Polariton superfluids — exciton-polariton microcavities for analogue gravity, Bogoliubov dispersion mapping, and first-order dissipative phase transitions; (3) Nanophotonics — coupling single quantum emitters (nanofiber-coupled atoms, perovskite nanocrystals) for quantum photonics and sensing; displacement sensor based on optical nanofiber; (4) Optical computing interfaces with quantum systems. Marie Curie IOF Fellow (2011), City of Paris Young Scientist Award (2015).
Quentin Glorieux's group explores quantum fluids of light and polariton physics. Research: (1) exciton-polariton condensates in semiconductor microcavities — superfluidity, vortex dynamics, analogue gravity; (2) quantum fluids of light in atomic media — photon-photon interactions via electromagnetically induced transparency; (3) analogue gravity with polariton and photon fluids — studying acoustic black hole analogs with quantum light. IUF member; ERC grants.