Exceptional Spectral Resolution
Patented "Snap-In" gratings
Imaging Optics & Large focal plane
Extended wavelength range setting
· Exceptional Spectral Resolution
· Patented "Snap-In" gratings
· Imaging Optics & Large focal plane
· Extended wavelength range setting
McPherson, Inc. Research Grade Czerny-Turner Monochromators are available in many different focal lengths and with many different options. Chances are good that we have one just right for your application. Models ranging from 0.67-m to 2-meter focal lengths share a wealth of features. Used in air the spectral range of these instruments extends from 185-nm to 78-µm, and with vacuum down to 105-nm (depends on the grating.) For intermediate ranges a purge gas can be used (Nitrogen, for example.) McPherson SNAP IN gratings allow the alignment-free use of many different gratings. Easily view a wider spectral range or obtain higher resolution! You can retrofit years later and not have to worry about alignment with the McPherson SNAP IN approach. Our dual grating turret also accepts these easy to exchange gratings.
Model 209 PDF Data Sheet
High resolution / Hyperfine press release
Optical Design | McPherson Model 209 1.33-meter focal length f/9.4 Monochromator |
Focal Length | 1.33-meter, Czerny Turner design Spectrometer with Patented "Snap-In" gratings |
Aperture Ratio | 9.4 (11.6 with smaller grating) |
Wavelength Range | refer to grating of interest for range, in extended position increase top limit 20% |
Wavelength Accuracy | +/-0.05 nm (with 1200 G/mm grating) |
Wavelength Reproducibility | +/- 0.005 nm (with 1200 G/mm grating) |
Grating Size | 120 x 140-mm (or 110 x 110-mm) - Echelle gratings up to 220-mm wide |
Slit Locations | Axial and lateral with optional extra entrance and exit port selection mirrors |
Focal Plane | 50-mm maximum width, multiply dispersion by the width of your detector for range |
Performance with various diffraction gratings:
Grating (G/mm) (others available) | 2400 | 1800 | 1200 | 600 | 300 | 150 | 75 | 20 |
Wavelength Range from 185 nm to | 650nm | 860nm | 1.3um | 2.6um | 5.2um | 10.4um | 20.8um | 78um |
Resolution (nm) at 313.1 nm | 0.005 | 0.007 | 0.01 | 0.02 | 0.04 | 0.08 | 0.16 | 0.60 |
Dispersion (nm/mm) | 0.31 | 0.41 | 0.62 | 1.24 | 2.48 | 4.96 | 9.92 | 37.2 |
First Order Littrow Blaze (nm) | 240nm | Holo | 250nm | 300nm | 750nm | 1.25um | 2.0um | 45um |
300nm | 300nm | 500nm | 1.0um | 2.5um | 3.0um | |||
Holo | 500nm | 750nm | 3.0um | 4.0um | 8.0um | |||
750nm | 1.0um | 4.0um | 6.0um | 10.0um | ||||
1.0um | 1.85um | 8um | 12um | |||||
