Related Experiment Video
Updated: Jun 20, 2026

Rejection of Fluorescence Background in Resonance and Spontaneous Raman Microspectroscopy
Published on: May 18, 2011
Quenching of backward stimulated Raman scattering by broadband forward Raman radiation
Abstract:
Experiments on backward stimulated Raman scattering of an injection-locked XeF (351.1-nm) laser beam are presented. Because the XeF laser is inhomogeneously broadened, its output is composed of both a narrow-band component (50-60% of the energy) and an unlocked broadband component. It is found that the presence of forward Raman scattering from the broadband unlocked component of the XeF energy terminates the backward Raman scattering of the narrow- (~1-GHz) bandwidth-locked component of the radiation. The results are of a general nature and would apply to scattering from any inhomogeneously broadened injection-locked laser.
Related Concept Videos
Raman Spectroscopy: Overview
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and the...
Raman Spectroscopy Instrumentation: Overview
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview
The ATR process begins by directing a beam...

