| General Features for McPherson Model 207, 2061, 209 & 2062 Monochromators In addition to the easy to use, and wide variety of patented SNAP IN diffraction gratings, efficient broadband reflective coatings, and master polished optics, these instruments also offer more great features and options. Better throughput and wider range - McPherson Czerny-Turner instruments with focal lengths greater than 0.67-meters allow you to use larger 120-mm x 140-mm grating or a 110-mm x 110-mm grating. The large grating offers almost 40% more area, achieving a faster f/number, and more throughput. In these models the grating can also rotate through an auxiliary 20° for extension of wavelength range. For the 1200-g/mm grating the high wavelength changes from 1300-nm to 1575-nm (more than 20% extra wavelength coverage!)High Performance Drive - All instruments use a digital scanning motor directly coupled to a mechanical lead screw wavelength drive. The mechanical screw and sine arm enable manual positioning and generate the sinusoidal motion required for linear wavelength readout when scanning a spectrometer. The mechanical sub-step is more expensive to produce than the direct worm drive design and it insures stability and repeatability. In addition this approach allows users to manually set up experiments and tune without computer support. Accessories - McPherson supplies a full line of accessories including sources and detectors for use with air path and vacuum instruments. Equipped these instruments with multi-fiber imaging systems, sample compartments, filter wheels, choppers, sources, detectors, etc. Call 1-800-255-1055 today |
 Imaging Spectrograph - These instruments can be equipped with imaging optics. Adapters for all popular CCD and photodiode array detectors (even those for the Infrared) can be supplied. Larger focusing optics fully illuminate a 50-mm wide focal plane. (In some cases we can even supply photographic adapters!) Reduced Stray Light - In the UV-VIS and near IR wavelength range, our excellent stray light characteristics can be further improved by installing the McPherson Model 608 Prism Predisperser. The predisperser may also be used as a spectral order sorter when Echelle gratings are installed. The Model 608 can be retrofit to instruments already in the field. Bilateral Slits - All instruments come with bilateral slits that are continuously adjustable by precision micrometer from 5 to 4000-µm. Micrometer readout is in 10-micron thimble divisions. Interpolation may allow reading and setting of smaller intervals. Slit height can be varied by a stepped aperture from 2 to 20-mm. To meet your configuration requirement monochromator slits may be positioned at the axial (end) or lateral (side) ports of the monochromator. Optional stepper motorized slit micrometers can be provided. Also, optional curved slits can be provided for coma correction even at extreme slit heights. Spectral Software - McPherson executable LabView software provides a simple user interface for instrument control. All spectrometer functions supported by device controllers, etc. can be automated. A selection of choice signal recovery devices from EGG, Keithley and Stanford Research can also be controlled. |