Systems and Methods for Spatial Heterodyne Raman Spectroscopy

An apparatus, comprising:

• a pulsed source of excitation light, wherein said pulsed source is configured to direct said excitation light to a sample to produce Raman light generated in said sample;
• at least one collection optic located such that the Raman light propagates as collimated light;
• at least one filter configured to remove excitation light and also to remove light outside of Raman light of a predetermined spectral range from the collimated light;
• a non-scanning reflective spatial heterodyne interferometer configured to receive said collimated light of said Raman light of said predetermined spectral range;
• wherein said non-scanning reflective spatial heterodyne interferometer comprises;
• a slitless entrance aperture wherein said aperture is operatively and proximately located at said filter;
• one or more reflective optical elements, each of the one or more said reflective optical elements configured to reflect and not absorb said Raman light having one or more wavelengths in the range from deep ultraviolet to near infrared;
• one or more reflective optical dispersive elements, each of the one or more said reflective optical dispersive elements configured to split and not absorb said Raman light having one or more wavelengths in the range from deep ultraviolet to near infrared;
• and an exit aperture;
• a detector configured to receive said Raman light exiting said exit aperture of said non-scanning reflective spatial heterodyne interferometeru.