  We report a shot noise limited high speed stimulated Raman microscopy
platform allowing to acquire molecular vibrational spectra over \SI{200}{\per
\cm} in \SI{12}{\micro \second} at a scan rate of 40kHz. Using spectral
focusing together with optimized acousto-optics programmable dispersive filters
the designed low noise imaging platform performs chemical imaging of dynamical
processes such as Mannitol crystal hydratation and reaches a signal to noise
ratio sufficient to perform label free histological imaging on frozen human
colon tissue slides.
