Develops second- and third-harmonic generation (SHG/THG) nonlinear optical microscopy to image collagen and other non-centrosymmetric structural proteins label-free in tissue, with applications to cancer diagnosis and fibrosis, pushing spatial/orientational resolution of structural imaging in intact tissue.

French is Professor and former Head of the Photonics Group (2001–2013). His group at Imperial (with Dunsby and Neil) develops multidimensional fluorescence imaging technology for life sciences and clinical applications. Research portfolio: (1) FLIM — wide-field time-gated FLIM using gated optical intensifiers and TCSPC for single-cell FRET-based biosensing of protein-protein interactions, cell signalling (kinase activity), and drug-target engagement in multi-well plates; (2) Super-resolved microscopy — STED, easySTORM (lower-cost STORM), and SIM+FLIM for mapping molecular function to biological nanostructure below the diffraction limit; (3) FLIM endoscopy — flexible wide-field FLIM endoscopes for label-free cancer diagnostics (autofluorescence lifetime) and osteoarthritis cartilage; (4) Open-source imaging — automated multiwell plate FLIM reader for high-content drug screening. Satellite lab at Francis Crick Institute.

Kaminski's Laser Analytics Group develops laser-based super-resolution and fluorescence-lifetime imaging methods (STED, SIM, dSTORM, FLIM) and applies them, with long-time collaborator Gabriele Kaminski Schierle, to visualise amyloid protein aggregation in live cells and organisms as a route to understanding neurodegenerative disease; the group also directs the EPSRC Centre for Doctoral Training in Sensor Technologies.

Kaminski Schierle heads the Molecular Neuroscience Group, applying super-resolution and functional fluorescence imaging (developed with Clemens Kaminski) to gain molecular-level understanding of protein misfolding in Alzheimer's, Parkinson's and Huntington's disease models, including live-cell and whole-organism (C. elegans) imaging of amyloid aggregation.

McGinty develops fluorescence lifetime imaging (FLIM) instrumentation, including endoscopic and widefield FLIM systems, for applications in cancer diagnosis and metabolic/functional imaging.

Neil works on advanced optical microscopy techniques including structured-illumination and super-resolved (STED/SIM) imaging, and wavefront-based aberration correction, within Imperial's Photonics/Biophotonics group.