Higher Spectral Resolution and Good Throughput
Patented "Snap-In" gratings
Imaging Optics & Large focal plane
Rugged Construction with Multiple slit locations
· Higher Spectral Resolution and Good Throughput
· Patented "Snap-In" gratings
· Imaging Optics & Large focal plane
· Rugged Construction with Multiple slit locations
The 1-meter focal length Model 2061 provides the traditional blend of throughput and spectral resolution. These instruments are staples of laboratory and experimental spectroscopy. We offer this unit with an f/7 aperture ratio in two versions. The most popular uses spherical optics. An "A" version is also available. It uses hａnd polished master off-axis parabolic optics to best image small entrance images. 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!
Model 2061 PDF Data Sheet
| Optical Design | McPherson Model 2061 1-meter focal length f/7 Monochromator |
| Focal Length | 1-meter, Czerny Turner design Spectrometer with Patented "Snap-In" gratings |
| Aperture Ratio | 7 (8.6 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 | 0.009 | 0.012 | 0.018 | 0.036 | 0.07 | 0.14 | 0.28 | 1.05 |
| Dispersion (nm/mm) | 0.42 | 0.55 | 0.83 | 1.6 | 3.2 | 6.4 | 12.8 | 48 |
| 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 | 8.0um | 12.0um | |||||
