Multiple-Beam System for Fast Raman Spectrometry

A developmental instrumentation system rapidly acquires full Raman spectra of gas molecules. The system is based on the principle of multiplex coherent antistokes Raman spectroscopy (CARS) and incorporates improvements over prior multiplex CARS systems. Among the potential applications for systems like this one are (1) imaging (including microscopy), (2) detection of molecular species of interest for diagnosis of flames and other possibly rapidly changing systems, and (3) detection of molecular species of interest for gas chromatography.