CHELMSFORD, Mass., March 3, 2015 — McPherson’s compact double monochromator Model 275D is suited for deployment in UV Raman spectroscopy systems for detecting chemical, biological and explosive activity. It works as a tunable filter and can work with wavelengths as short as 190 nm with no special preparation. The double monochromator has a stable housing and wavelength tuning for signal optimization. Diffraction gratings with aberration correction and good efficiency from UV to IR are available. Applications include Raman filtering, UV edge rejection, photoluminescence and light source and detector characterization.