The Omni-λ750i from Zolix Instruments is a Czerny-Turner Monochromator that has a focal length of 750 mm. It has a wavelength accuracy of ± 0.1 nm and wavelength repeatability of ± 0.01 nm. This monochromator has an aperture ratio of f/9.7 and a dispersion of 1.1 nm/mm (at 435.8 nm). It has an integrated PMT and CCD with a resolution of 0.028 nm (PMT) and 0.09 nm (CCD). This monochromator has a step size of 0.0025 nm and stray light of 1x10-5. It has a focal plane that measures 30 (W) x 14 (H) mm and an optical axis of 146 (H) mm.
The Omni-λ750i has a motorized or manual slit with a slit width of 0.01 mm - 3 mm and slit height of 2, 4, or 14 mm. It has an interchangeable triple grating turret mount with a grating size of 68 mm x 68 mm. This monochromator uses Labview driver software and can be controlled via a USB 2.0 & RS232 interfaces. It is available in a module that measures 800 mm x 338 mm x 218 mm and is ideal for fluorescence & Raman spectroscopy, light source characterization, photoluminescence, photochemistry, and imaging applications.