A small fraction, however, is inelastically scattered, experiencing a change in energy and wavelength. This phenomenon, known as Raman scattering, occurs due to the vibrational energy levels of the ...

In this example, the SMSR is lowered to more than 60 dB at 640 nm, corresponding to a Raman shift of 49 cm-1. The second example [Fig. 2] depicts the suppression of long-wavelength emission in a 785 ...

Longer wavelength excitation lasers have a lower ... In this case, a 680 nm excitation laser translates to a Raman shift of 2000-4000 cm-1. The probe filters are chosen to enable excitation ...