The 74181 Double Grating Assembly is designed for installation into the Oriel Cornerstone 260 monochromators and MS260i imaging spectrographs. This 50 x 50 mm grating comes bonded to a double grating mount, allowing it to be one of two gratings installed inside the instrument. The grating efficiency exceeds 20% over its entire operating range, with a peak efficiency of greater than 65% at its blaze wavelength.
This Grating Assembly may be installed in the field, after which the grating must be aligned and calibrated. However, it is suggested to return the instrument to Newport for grating installation and calibration. During recalibration, the instrument is thoroughly assessed to ensure optimal performance and routine maintenance services are performed. The monochromator is returned with a Certificate of Calibration, guaranteeing the instrument meets or exceeds it specifications.
Технические характеристики
- Type Ruled
- Grooves per mm 121.6
- Blaze Wavelength 410 nm
- Primary Wavelength Region 260 to 550 nm
- Peak Efficiency 67%
- Reciprocal Dispersion 31.3 nm/mm
- Coating Type AlMgF2 broadband reflective
- Multichannel Array Bandpass 798 nm
- Grating Mount Double
