Research Areas - (7) Two-Photon Brain Imaging

Full path: Biology > Biophysics > Quantum Biology / Biosensing > Neuroscience Biophotonics Imaging > Two-Photon Brain Imaging

Department(s)/lab(s): Physics / LOB (Laboratoire d'Optique et Biosciences) | Laboratoire d'Optique et Biosciences (LOB) β€” Beaurepaire Group @ X
Summary:

Emmanuel Beaurepaire (DR1 CNRS, LOB/Γ‰cole Polytechnique) is a pioneer of multiphoton and harmonic generation deep-tissue microscopy. Research: (1) two-photon excited fluorescence (2PEF) and three-photon deep-tissue brain imaging; (2) second-harmonic generation (SHG) and third-harmonic generation (THG) label-free imaging of collagen, myosin, myelin; (3) multimodal 3-photon light-sheet microscopy with ultrafast lasers; (4) metabolic imaging using FLIM/NADH. Key LOB permanent staff (May 2024). Active collaboration with LCF/Lasers group on ultrafast laser development.

Department(s)/lab(s): Imaging Physics (ImPhys) | Brinks Lab @ TU Delft
Summary:

Daan Brinks develops all-optical electrophysiology tools for neuroscience. His lab engineers genetically-encoded voltage indicators (GEVIs) and combines them with optogenetics to read out and control neural circuit activity. Key directions: (1) engineering bright, fast GEVIs with improved photostability and voltage sensitivity; (2) multiplexed all-optical neural circuit mapping; (3) identifying rare aggressive cancer cells using voltage-sensitive dyes. His voltage imaging approach represents cutting-edge biosensing at the intersection of photonics and neuroscience.

Department(s)/lab(s): Biology | Schnitzer Lab @ Stanford
Summary:

Schnitzer's lab invents miniaturized and fiber-based two-photon microscopes and voltage/calcium imaging methods that allow single-cell-resolution recording of neural activity in freely behaving animals, including recent wide-field fluorescence-lifetime voltage imaging developed with the Kasevich group for high-throughput readout of neuronal spiking.

Department(s)/lab(s): Bioengineering | Schultz Neurotechnology Group @ Imperial
Summary:

Schultz uses two-photon calcium imaging and other optical neurotechnology to study neural population activity in vivo, with application to understanding circuit dysfunction in neurodegenerative disease and to brain-machine interfaces.

Department(s)/lab(s): Physics / LOB (Laboratoire d'Optique et Biosciences) | Laboratoire d'Optique et Biosciences (LOB) β€” Beaurepaire Group @ X
Summary:

Willy Supatto (DR2 CNRS, LOB) develops ultrafast two-photon light-sheet microscopy for quantitative in vivo imaging of embryo development and tissue dynamics. Research: (1) two-photon SPIM (light-sheet) for volumetric live imaging in zebrafish embryos; (2) SHG imaging of fibrillar proteins; (3) polarization-THG microscopy of structural anisotropy; (4) photodamage in multiphoton imaging. Part of key LOB team with Beaurepaire.

Department(s)/lab(s): Princeton Neuroscience Institute | Tank Lab @ Princeton
Summary:

Tank is a pioneer of two-photon laser-scanning microscopy for imaging calcium dynamics in dendrites and neural circuits in vivo, and co-directs the Bezos Center for Neural Circuit Dynamics, which develops large-scale optical recording instrumentation combined with rodent virtual-reality systems to study persistent neural activity and short-term memory. His group's methodological contributions to cellular-resolution optical imaging underpin much of modern systems neuroscience.

Department(s)/lab(s): Physics & Astronomy | Zheltikov Biophotonics Laboratory @ TAMU
Summary:

Zheltikov integrates NV-diamond magnetometry into photonic-crystal fibers for high-resolution, fiber-delivered magnetic-field imaging and endoscopy, alongside ultrafast biophotonics (multiphoton deep-tissue imaging, SWIR probes) and quantum-light molecular spectroscopy. In the broader landscape of NV-centre ensemble quantum sensing (DEER, nano-NMR, T1 relaxometry) operating near pT/sqrt(Hz) sensitivity, this work extends NV ensemble sensing into fiberized, in-vivo-compatible geometries.