Fig. 4.

Ex vivo examination of various murine tissues; AF: autofluorescence; SHG: second-harmonic generation; CARS: coherent anti-Stokes Raman scattering; FLIM: fluorescence lifetime imaging (${\tau }_m=\text{mean lifetime}$); CARS pump laser: 800 nm; CARS Stokes laser: 1035 nm. Scale bar: $30\mu \mathrm{m}$.