Picosecond coherent Raman study of solid-state chemical reactions during laser polymer ablation

This paper describes the application of multiplex picosecond coherent anti-Stokes Raman spectroscopy for analysis of chemical reaction products in the solid phase resulting from laser ablation. The technique is uniquely capable of performing detailed chemical analysis in small probe volumes of organic thin films, which for the study presented here were 10 ng and nearly 3 μm respectively. Applications to laser microphotoconversion processes in a variety of photolithographic, manufacturing and medicine are proposed.