9072DS - Double Subtractive 1/8 m (125 mm) Computer Controlled Monochromator/Spectrograph with USB

In the 9072DS, the grating in the second monochromator is arranged such that it reverses the spectral dispersion of the first monochromator. This leads to a spectrally homogenized beam at the output port of the second monochromator and greatly reduced stray light, ideal for spectroradiometry, Raman or UV measurements of solar radiation.
The arrangement of the 9072DS allows it to act either as a tunable bandpass filter or a tunable notch filter. Arranged as a tunable bandpass filter the bandpass of the device is determined by the width of an intermediate slit. When arranged as a tunable notch filter the width of the notch is determined by the physical width of an opaque notch placed at the intermediate slit position.
The 9072DS can also be used to pass or filter out several selected wavelengths by using a custom intermediate multi-slit mask instead of a single width intermediate slit.

One SS-80 slit is included, which can be attached to either the input or output port. A second slit can be added to the order if desired.
The fixed intermediate slit or notch filter is not included in the 9072DS and can be selected from any of Sciencetech's SF-series of fixed slits and added to the order. A custom multi-slit mask can be added to the order upon request.
Gratings and grating holders are not included. The 9072DS accommodates 30 × 30 mm gratings, with up to three gratings per turret. Two of each selected grating must be purchased to fill both monochromators. One grating holder is required for each grating.