Perspective: Coherent Raman scattering microscopy, the future is bright

Chemical imaging offers critical information to understand the fundamentals in biology and to assist clinical diagnostics. Label-free chemical imaging piques a general interest since it avoids the use of bio-perturbing molecular labels and holds promises to characterize human tissue in vivo. Coherent Raman scattering (CRS), which utilizes lasers to excite the vibrations of molecules, renders new modalities to map chemicals in living samples...