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77250 Monochromator Grating, Holographic, 1800 l/mm, 560 nm blaze, 320-670 nm
77250 Monochromator Grating, Holographic, 1800 l/mm, 560 nm blaze, 320-670 nm
Model: 77309
Product Series Overview
Diffraction Gratings for 77250 and 77250B MonochromatorsThe model 77309 Grating Assembly is designed for installation into the Oriel® 77250 Hand Operated Monochromator. This 30 x 30 mm grating comes pre-aligned in its own frame, allowing it to precisely fit inside the instrument. The grating efficiency exceeds 20% over its entire operating range, with a peak efficiency exceeding 50% at its blaze wavelength.
The frame has a tab that allows the grating to be inserted or replaced inside the monochromator without touching its surface. Each grating comes with a protective cover and is labeled with the model number, making interchangeability and storage simple. Note that the instrument will require recalibration after replacing the grating.
Specifications
- TypeHolographic
- Grooves per mm1800
- Blaze Wavelength560 nm
- Primary Wavelength Region320 to 670 nm
- Peak Efficiency54%
- Reciprocal Dispersion4.1 nm/mm
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