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

In the 9072DA, the inbound light is dispersed by the first grating then passed through a fixed intermediate slit where stray light is rejected and then spectrally dispersed again by the second grating.

The double dispersion of the double additive monochromators results in a doubling of the dispersion of a single monochromator, leading to better optical resolution. The bandpass is half that of a single 9072 monochromator.

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 slit is not included in the 9072DA and can be selected from any of Sciencetech's SF-series of fixed slits and added to the order.
Gratings and grating holders are not included. The 9072DA 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.