In vivo multiphoton microscopy beyond 1 mm in the brain

The ability to visualize deep brain structures in vivo with high spatial resolution is of rising interest to investigate neuronal physiology and cerebral vasculature. Optical imaging offers non-invasive, high-resolution in vivo microscopy techniques to observe brain tissue and its surrounding environment. Two-photon fluorescence laser- scanning microscopy (2PM) can overcome depth limitations by using nonlinear excitation. The ideal approach for deep imaging in brain is to use both high energy pulses and longer excitation wavelengths. Please click Additional Files below to see the full abstract