(9040-3G) High Resolution 1/2m F/6.9 Monochromator with Triple Grating Turret

The Sciencetech 9040 is a half meter, high performance monochromator/spectrograph. It supports large size gratings for high light throughput: three sizes are available: 64 x 64mm, 84 x 84 mm, and 102 x 102mm which allow it to achieve apertures of f/6.9, f/5.2 and f/4.0 respectively. This version is f/6.9, and suitable for use with 64x64mm sized ruled or holographic reflection gratings.
The 9040 is based on the Czerny-Turner optical configuration. The 9040 supports both single grating and triple grating turret configurations. This version includes a triple grating turret and supports cassettes with up to three 68x68mm sized gratings. Gratings are mounted on a rotating turret for wavelength selection. Grating selection is performed by a rotating drum that is perpendicular to the axis of rotation of the turret in order to minimize errors in calibration due to grating selection. The triple grating cassette is removable and can be manually swapped with other grating cassettes without disruption to the optical alignment. The 9040-3G is also available in double additive and double subtractive versions to obtain even higher resolution or to minimize stray light.