90088262 MCS130B
CORNERSTONE 130B MONOCHROMATORS
20
6
5B
DIFFRACTION GRATINGS
Diffraction gratings are used to disperse light; that is to spatially separate light of different wavelengt hs .
They have replaced prisms in most fields of spectral analysis. Two gratings are installed into the
Cornerstone 130B monochromator. In general, the grating with the highest efficiency is chosen at a
particular wavelength. The optional TracQ
™ Basic Data Acquisition and Radiometery Software allows
users to set up a specific grating switchover wavelength, so the most appropriate grating will
automatically be chosen while performing a scan over a range of wavelengths.
The Cornerstone 130B monochromators feature diffraction gratings produced by Richardson Gratings.
Both Oriel Instruments and Richardson Gratings are part of Newport, and have a long history of work ing
together to design monochromators that are appropriate for a wide variety of applications.
A tutorial on grating physics may be found in the Appendix of this user’s manual.
The photo below illustrates a diffraction grating mounted into a holder for installation into the Cornerstone
130B monochromator.
An unmounted grating cannot be installed by the user in the field; grat ings mus t
be installed onto the appropriate mount for the Cornerstone 130B monochromator and aligned at the
factory.
Figure 13: Grating Installed onto Mount
Содержание Cornerstone 130B
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