Materials scientists can learn a lot about a sample material by shooting lasers at it. With nonlinear optical microscopy—a specialized imaging technique that looks for a change in the color of intense ...

(a) Schematic of the PC-SRS microscope system for 3D chemical imaging. Inset drawings illustrate the ring-shaped pump beam and Gaussian Stokes beam on the SLM. (b) The distortion-corrected phase ...