Jacqmin works on chip-trapped ultracold-atom sources and matter-wave interferometry within LKB's Atom Chips team, part of the broader effort (alongside fiber Fabry-Perot microcavity work) to build compact, chip-scale atomic sensors and clocks.
Jacques is a pioneer of scanning NV magnetometry, using single nitrogen-vacancy spins in scanning-probe diamond tips to image magnetic textures at the nanoscale under ambient conditions. His team applies this to condensed-matter systems including antiferromagnetic domain walls and chiral spin textures, non-collinear antiferromagnetic order via single-spin relaxometry, and current-driven skyrmion motion in synthetic antiferromagnets, work carried out in close collaboration with materials-physics groups.
Studies molecular and nano-optics, plasmonics, and near-field light-matter interactions, using super-resolution optical imaging to reveal active sites and phase transformations in heterogeneous catalysis and single nanodomains.
Arjen Jakobi (Associate Professor, BioNanoscience) uses cryo-electron microscopy and tomography for structural cell biology. Research: (1) cryo-ET in-cell structural biology — resolving protein complexes at near-atomic resolution inside vitrified cells; (2) autophagy and membrane remodelling — structural mechanism of autophagosome biogenesis; (3) integrin signalling complexes. Develops algorithms for sub-tomogram averaging and de-novo model building.
Jamieson's group built the counted single-ion implantation capability that underpins every donor spin qubit made at UNSW and Melbourne: individual P, Sb or Bi ions are implanted into silicon through a nanoscale aperture while on-chip detector electrodes register the electron-hole pairs from each ion stop event, so the number and position of dopants is known rather than assumed. Recent directions extend this to high-atomic-number donors for nuclear-spin qudits, to colour-centre creation in diamond and silicon carbide by counted implantation, and to characterising the damage and charge environment those ions leave behind. The work is fabrication-forward but its scientific content is single-particle detection metrology. 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 — his contribution is upstream: the deterministic creation and validation of the very spin defects whose ensembles are later interrogated by DEER and nanoscale NMR at pT/sqrt(Hz).
PREFERRED. Jasanoff's lab develops genetically encoded and nanoparticle/small-molecule MRI sensors (for calcium, dopamine, serotonin, and other neurochemical targets) that convert molecular binding events into brain-wide, noninvasive MRI contrast changes, effectively giving whole-brain 'molecular fMRI' with a growing palette of chemically distinct reporters; recent work includes liposomal nanoprobes actuated by engineered water channels for higher-sensitivity detection.
PREFERRED. Ji is launching the Ji Quantum Lab at MIT to build next-generation scanning-probe and on-chip quantum sensors (millimeter-wave impedance microscopy, 'RFlexiScope') that map nanoscale conductivity, magnetism and collective excitations in strongly correlated and topological quantum materials down to the quantum limit. The lab is explicitly recruiting PhD students, postdocs, and UROPs as of its founding.
Quantum information theorist with strong focus on quantum sensing. Directions: (1) error-correction-enhanced quantum sensing protocols surpassing Heisenberg limit; (2) quantum transduction theory for microwave-optical interfaces; (3) global-scale quantum network architecture; (4) room-temperature NV-based nanoscale magnetometry theory; (5) sub-wavelength quantum imaging protocols. Works closely with experimental quantum sensing groups at UChicago and beyond.
Jimenez's group develops microfluidic fluorescence-activated cell-sorting platforms to engineer and screen fluorescent proteins/biosensors, alongside ultrafast and single-molecule spectroscopy of biomolecular photophysics - bridging photophysics, instrumentation, and quantitative bioimaging probes. For context, this complements the established paradigm of NV-diamond ensemble magnetometry (Hahn-echo/DEER, nanoscale NMR, T1 relaxometry) operating near pT/√Hz sensitivity.
Johnson studies neutron stars and black holes via extreme-resolution VLBI imaging, including direct observation of magnetic fields and orbital dynamics near black-hole event horizons as part of the Event Horizon Telescope collaboration, pushing spatial resolution to the horizon scale.