Perkin-Elmer RamanStation 400 Series, Getting Started Manual

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32 . RamanStation 400 Series Getting Started Guide
Spectrograph Detector Systems
The RamanStation 400 Series is equipped with an Echelle spectrograph.
The Echelle Spectrograph
Figure 12 Schematic of the Echelle spectrograph
PerkinElmer’s Echelle detector is shipped in the RamanStation 400 and RamanStation 400F
spectrometers. The system contains two components; the Echelle spectrograph and a two-
dimensional CCD detector (Figure 13). The system works by dispersing the light in two
dimensions by using two gratings. The first grating disperses the light horizontally onto the
second grating, where the light is further dispersed vertically onto the CCD detector. The
light is spread over a number of strips on the CCD that are read simultaneously; therefore a
full spectral range (at high resolution) can be achieved with one acquisition.
CCD Detector
Lens #2
Lens #1
Grating #2
Grating #2