Laser-based Instrumentation

The laser is unique among optical sources, having the unusual combination of narrow bandwidth, high intensity, extreme brightness, and optical coherence. Fifty years since its invention, it is used in a myriad of applications, from science & medicine to consumer products, entertainment, materials processing, and beyond. The optics industry, in general, has followed suit,  improving…

Stimulated Raman Scattering

In SRS microscopy, like CARS microscopy, both the pump and Stokes photons are incident on the sample. If the frequency difference ωSRS = ω pump – ω Stokes matches a molecular vibration (ωvib) stimulated excitation of the vibrational transition occurs. Unlike CARS, in SRS there is no signal at a wavelength that is different from…