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  • Commander UV Raman Triple Spectrometer
Oct 2013
McPhersonRequest Info
CHELMSFORD, Mass., Oct. 20, 2013 — McPherson’s Commander triple spectrometer now operates over a wider wavelength range. Featuring multiple ports for experiments such as UV Raman and photoluminescence, it is suitable for research, development and educational applications.

It operates in the 185- to 2200-nm region with a selection of different gratings. At f/5, it delivers edge rejection within 5 cm−1 in the visible spectral region. Using aspheric mirrors throughout, the instrument is free from chromatic aberrations. The mirrors correct imaging to provide good signal levels at the detector, even with weakly emitting samples. The entrance slit width and intermediate aperture in the filter stage allow users to set the slope of the edge rejection as well as the wavelength range at the detector.

The primary spectrograph is vacuum-compatible. The double-monochromator filter stage and sample area may be nitrogen-purged to eliminate water and oxygen absorption. Under ideal circumstances, this combination of environmental control allows work to wavelengths as short as 160 nm.


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