The 74161 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 50% 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 Holographic
- Grooves per mm 1800
- Blaze Wavelength 560 nm
- Primary Wavelength Region 320 to 925 nm
- Peak Efficiency 54%
- Reciprocal Dispersion 2.1 nm/mm
- Coating Type AlMgF2 broadband reflective
- Multichannel Array Bandpass 53 nm
- Grating Mount Double
